FNUS56 KEKA 232306 AAA FWFEKA FIRE WEATHER PLANNING FORECAST FOR NORTHWEST CALIFORNIA...UPDATED NATIONAL WEATHER SERVICE Eureka CA 406 PM PDT Sun Aug 23 2026 ...ELEVATED FIRE WEATHER POTENTIAL NEAR ZONE 410... .DISCUSSION...A warmer drier trend for the next 36 hours for areas of the interior, particularly Trinity county bordering Siskiyou. Gusty diurnal southerly winds coming up the north valley will be channeled into mountainous terrain, possibly warming air parcels as they descend into river valleys of Siskiyou. Exposed ridges will also be of concern. Otherwise, recoveries will be moderate to good in the lower elevations and poor in the higher elevations. Winds generally remain light and terrain driven for our CWA with typical afternoon breezes. A deeper marine layer returns mid week. CAZ401-241330- Coastal Del Norte- 406 PM PDT Sun Aug 23 2026 .TONIGHT... * Sky/Weather............Mostly clear then becoming mostly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...54-57 Ridges/upr slopes....53-56 * Max Humidity....... Valleys/lwr slopes...80-94 percent Ridges/upr slopes....78-88 percent * 20-Foot Winds... Valleys/lwr slopes...Southwest winds 5 to 8 mph in the evening...becoming downslope/downvalley 2 to 5 mph. Ridges/upr slopes....Southwest winds 5 to 7 mph. * Mixing Height..........500 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...65-71 Ridges/upr slopes....66-72 * Min Humidity....... Valleys/lwr slopes...65-77 percent Ridges/upr slopes....65-75 percent * 20-Foot Winds... Valleys/lwr slopes...South winds 5 to 8 mph. Ridges/upr slopes....South winds 5 to 8 mph. * Mixing Height..........1300 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Partly cloudy then becoming cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...52-55 Ridges/upr slopes....49-54 * Max Humidity....... Valleys/lwr slopes...92-100 percent Ridges/upr slopes....91-100 percent * 20-Foot Winds... Valleys/lwr slopes...South winds 5 to 8 mph. Ridges/upr slopes....South winds 5 to 8 mph. * Mixing Height..........600 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Cloudy then becoming partly cloudy. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...61-66 Ridges/upr slopes....61-68 * Min Humidity....... Valleys/lwr slopes...74-88 percent Ridges/upr slopes....74-84 percent * 20-Foot Winds... Valleys/lwr slopes...South winds 5 mph...shifting to the southwest in the afternoon. Ridges/upr slopes....South winds 5 to 6 mph...shifting to the southwest 5 mph in the afternoon. * Mixing Height..........1600 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ402-241330- Interior Del Norte Including the Smith River Valley- 406 PM PDT Sun Aug 23 2026 .TONIGHT... * Sky/Weather............Partly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...54-60 Ridges/upr slopes....57-63 * Max Humidity....... Valleys/lwr slopes...61-76 percent Ridges/upr slopes....48-58 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 7 mph...shifting to the northeast after midnight. Ridges/upr slopes....North winds 5 to 9 mph...shifting to the east after midnight. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...77-85 Ridges/upr slopes....74-82 * Min Humidity....... Valleys/lwr slopes...57-67 percent Ridges/upr slopes....50-60 percent * 20-Foot Winds... Valleys/lwr slopes...Southwest winds 5 to 8 mph. Ridges/upr slopes....Southwest winds 5 to 8 mph. * Mixing Height..........4200 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...50-58 Ridges/upr slopes....54-62 * Max Humidity....... Valleys/lwr slopes...73-88 percent Ridges/upr slopes....58-73 percent * 20-Foot Winds... Valleys/lwr slopes...Southwest winds 5 to 6 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....South winds 5 to 6 mph...shifting to the southeast 5 mph after midnight. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...71-79 Ridges/upr slopes....67-75 * Min Humidity....... Valleys/lwr slopes...70-80 percent Ridges/upr slopes....67-77 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming southwest 5 to 6 mph in the afternoon. Ridges/upr slopes....South winds 5 mph...shifting to the southwest 5 to 6 mph in the afternoon. * Mixing Height..........2900 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ403-241330- Northeastern Interior Humboldt and Southwestern Siskiyou Including Orleans- 406 PM PDT Sun Aug 23 2026 .TONIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...58-62 Ridges/upr slopes....59-62 * Max Humidity....... Valleys/lwr slopes...48-58 percent Ridges/upr slopes....33-43 percent * 20-Foot Winds... Valleys/lwr slopes...Southwest winds 5 to 7 mph...shifting to the northeast 5 to 6 mph after midnight. Ridges/upr slopes....Northwest winds 5 to 7 mph...shifting to the northeast after midnight. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...92-100 Ridges/upr slopes....78-86 * Min Humidity....... Valleys/lwr slopes...15-21 percent Ridges/upr slopes....17-25 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 5 mph...becoming southwest 5 to 11 mph in the afternoon. Ridges/upr slopes....Southeast winds 5 to 6 mph...shifting to the southwest 5 to 11 mph in the afternoon. * Mixing Height..........7900 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...57-62 Ridges/upr slopes....59-62 * Max Humidity....... Valleys/lwr slopes...55-65 percent Ridges/upr slopes....38-48 percent * 20-Foot Winds... Valleys/lwr slopes...Southwest winds 5 to 8 mph in the evening...becoming downslope/downvalley 2 to 5 mph. Ridges/upr slopes....Southwest winds 5 to 10 mph...shifting to the east after midnight. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Mostly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...87-95 Ridges/upr slopes....73-81 * Min Humidity....... Valleys/lwr slopes...20-28 percent Ridges/upr slopes....26-34 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming southwest 5 to 6 mph in the afternoon. Ridges/upr slopes....Southeast winds 5 mph...shifting to the southwest 5 to 7 mph in the afternoon. * Mixing Height..........6100 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ404-241330- Northern Coastal Humboldt- 406 PM PDT Sun Aug 23 2026 .TONIGHT... * Sky/Weather............Partly cloudy then becoming mostly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...54-57 Ridges/upr slopes....around 53 * Max Humidity....... Valleys/lwr slopes...86-96 percent Ridges/upr slopes....91 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 to 7 mph in the evening...becoming light winds 2 to 4 mph. Ridges/upr slopes....Northwest winds 5 to 6 mph in the evening...becoming light winds 2 to 4 mph. * Mixing Height..........500 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...66-74 Ridges/upr slopes....around 67 * Min Humidity....... Valleys/lwr slopes...66-81 percent Ridges/upr slopes....69 percent * 20-Foot Winds... Valleys/lwr slopes...Southwest winds 5 to 8 mph. Ridges/upr slopes....Variable 2 to 4 mph...becoming southwest 5 to 6 mph in the afternoon. * Mixing Height..........1600 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Partly cloudy then becoming mostly cloudy. Patchy fog after midnight. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...53-56 Ridges/upr slopes....around 52 * Max Humidity....... Valleys/lwr slopes...92-100 percent Ridges/upr slopes....93 percent * 20-Foot Winds... Valleys/lwr slopes...Southwest winds 5 to 6 mph in the evening...becoming light winds 2 to 4 mph. Ridges/upr slopes....Southwest winds 5 mph in the evening...becoming light winds 1 to 3 mph. * Mixing Height..........600 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy. Patchy fog in the morning. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...62-69 Ridges/upr slopes....around 63 * Min Humidity....... Valleys/lwr slopes...73-88 percent Ridges/upr slopes....81 percent * 20-Foot Winds... Valleys/lwr slopes...Light winds 2 to 4 mph...becoming west 5 to 6 mph in the afternoon. Ridges/upr slopes....Variable 1 to 3 mph...becoming northwest 5 mph in the afternoon. * Mixing Height..........1800 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ405-241330- Northwestern Interior Humboldt Including the Bald Hills- 406 PM PDT Sun Aug 23 2026 .TONIGHT... * Sky/Weather............Partly cloudy then becoming mostly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...54-60 Ridges/upr slopes....56-64 * Max Humidity....... Valleys/lwr slopes...67-82 percent Ridges/upr slopes....55-65 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 to 6 mph...shifting to the southeast 5 mph after midnight. Ridges/upr slopes....West winds 5 to 6 mph...shifting to the southeast 5 to 7 mph after midnight. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...79-87 Ridges/upr slopes....75-83 * Min Humidity....... Valleys/lwr slopes...57-67 percent Ridges/upr slopes....52-62 percent * 20-Foot Winds... Valleys/lwr slopes...Southeast winds 5 mph...shifting to the southwest 5 to 6 mph in the afternoon. Ridges/upr slopes....Southeast winds 5 to 6 mph...shifting to the southwest 5 to 7 mph in the afternoon. * Mixing Height..........3100 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Mostly clear then becoming mostly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...51-57 Ridges/upr slopes....53-61 * Max Humidity....... Valleys/lwr slopes...75-90 percent Ridges/upr slopes....62-77 percent * 20-Foot Winds... Valleys/lwr slopes...South winds 5 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....South winds 5 mph in the evening...becoming downslope/downvalley 2 to 4 mph. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...71-79 Ridges/upr slopes....68-76 * Min Humidity....... Valleys/lwr slopes...69-79 percent Ridges/upr slopes....64-74 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph...becoming west 5 mph in the afternoon. Ridges/upr slopes....South winds 5 mph...shifting to the west 5 to 6 mph in the afternoon. * Mixing Height..........2300 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ406-241330- Eastern Interior Humboldt Including Willow Creek and Hoopa- 406 PM PDT Sun Aug 23 2026 .TONIGHT... * Sky/Weather............Partly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...around 60 Ridges/upr slopes....60-65 * Max Humidity....... Valleys/lwr slopes...49-59 percent Ridges/upr slopes....33-43 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 8 mph...shifting to the southeast 5 mph after midnight. Ridges/upr slopes....Northwest winds 5 to 7 mph...shifting to the east after midnight. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...93-101 Ridges/upr slopes....77-85 * Min Humidity....... Valleys/lwr slopes...19-27 percent Ridges/upr slopes....20-28 percent * 20-Foot Winds... Valleys/lwr slopes...Southeast winds 5 mph...shifting to the southwest 5 to 8 mph in the afternoon. Ridges/upr slopes....Southeast winds 5 to 6 mph...shifting to the southwest 5 to 9 mph in the afternoon. * Mixing Height..........6700 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...around 60 Ridges/upr slopes....59-62 * Max Humidity....... Valleys/lwr slopes...57-72 percent Ridges/upr slopes....39-49 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 to 6 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....Southwest winds 5 to 6 mph...shifting to the southeast after midnight. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Mostly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...85-93 Ridges/upr slopes....72-80 * Min Humidity....... Valleys/lwr slopes...30-38 percent Ridges/upr slopes....31-39 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming west 5 to 6 mph in the afternoon. Ridges/upr slopes....Southeast winds 5 to 6 mph...shifting to the southwest in the afternoon. * Mixing Height..........4900 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ407-241330- Southwestern Humboldt Including the King Range and the Eel River Valley- 406 PM PDT Sun Aug 23 2026 .TONIGHT... * Sky/Weather............Mostly clear then becoming mostly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...54-58 Ridges/upr slopes....56-64 * Max Humidity....... Valleys/lwr slopes...67-82 percent Ridges/upr slopes....57-72 percent * 20-Foot Winds... Valleys/lwr slopes...North winds 5 to 10 mph. Ridges/upr slopes....North winds 6 to 13 mph...shifting to the east 5 to 8 mph after midnight. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...81-89 Ridges/upr slopes....74-82 * Min Humidity....... Valleys/lwr slopes...41-51 percent Ridges/upr slopes....53-63 percent * 20-Foot Winds... Valleys/lwr slopes...South winds 5 to 8 mph. Ridges/upr slopes....South winds 5 to 8 mph. * Mixing Height..........2400 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Mostly clear then becoming mostly cloudy. Patchy dense fog after midnight. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...52-55 Ridges/upr slopes....53-59 * Max Humidity....... Valleys/lwr slopes...79-94 percent Ridges/upr slopes....69-84 percent * 20-Foot Winds... Valleys/lwr slopes...Southwest winds 5 to 6 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....Variable 1 to 3 mph. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...77-85 Ridges/upr slopes....69-77 * Min Humidity....... Valleys/lwr slopes...49-59 percent Ridges/upr slopes....64-74 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph...becoming west 5 mph in the afternoon. Ridges/upr slopes....Variable 1 to 3 mph...becoming west 5 mph in the afternoon. * Mixing Height..........2600 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ408-241330- Southeastern Interior Humboldt Including Kneeland and Alderpoint- 406 PM PDT Sun Aug 23 2026 .TONIGHT... * Sky/Weather............Mostly clear then becoming mostly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...55-60 Ridges/upr slopes....56-64 * Max Humidity....... Valleys/lwr slopes...61-76 percent Ridges/upr slopes....53-63 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 8 mph in the evening...becoming downslope/downvalley 2 to 5 mph. Ridges/upr slopes....North winds 5 to 6 mph...shifting to the southeast after midnight. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...82-90 Ridges/upr slopes....76-84 * Min Humidity....... Valleys/lwr slopes...39-49 percent Ridges/upr slopes....46-56 percent * 20-Foot Winds... Valleys/lwr slopes...Southeast winds 5 to 6 mph...shifting to the southwest 5 to 7 mph in the afternoon. Ridges/upr slopes....Southeast winds 5 to 6 mph...shifting to the southwest 5 to 8 mph in the afternoon. * Mixing Height..........4500 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...53-57 Ridges/upr slopes....53-61 * Max Humidity....... Valleys/lwr slopes...72-87 percent Ridges/upr slopes....57-72 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 to 6 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....Southwest winds 5 to 6 mph in the evening...becoming downslope/downvalley 2 to 4 mph. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...76-84 Ridges/upr slopes....69-77 * Min Humidity....... Valleys/lwr slopes...53-63 percent Ridges/upr slopes....65-75 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming west 5 to 6 mph in the afternoon. Ridges/upr slopes....Variable 2 to 4 mph...becoming west 5 to 6 mph in the afternoon. * Mixing Height..........3700 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ409-241330- Northwestern Trinity Including Salyer and Big Bar- 406 PM PDT Sun Aug 23 2026 .TONIGHT... * Sky/Weather............Partly cloudy then becoming mostly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...56-61 Ridges/upr slopes....58-62 * Max Humidity....... Valleys/lwr slopes...46-56 percent Ridges/upr slopes....31-39 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 8 mph...shifting to the east 5 mph after midnight. Ridges/upr slopes....Northwest winds 5 to 7 mph...shifting to the east 5 to 11 mph after midnight. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...93-101 Ridges/upr slopes....76-84 * Min Humidity....... Valleys/lwr slopes...14-19 percent Ridges/upr slopes....13-21 percent * 20-Foot Winds... Valleys/lwr slopes...Southeast winds 5 to 6 mph...shifting to the south 5 to 8 mph in the afternoon. Ridges/upr slopes....Southeast winds 5 to 9 mph. * Mixing Height..........8300 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...55-59 Ridges/upr slopes....57-62 * Max Humidity....... Valleys/lwr slopes...50-60 percent Ridges/upr slopes....32-42 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 to 7 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....West winds 5 to 8 mph...shifting to the east 5 to 6 mph after midnight. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...88-96 Ridges/upr slopes....74-82 * Min Humidity....... Valleys/lwr slopes...17-25 percent Ridges/upr slopes....16-24 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming southwest 5 to 6 mph in the afternoon. Ridges/upr slopes....Southeast winds 5 to 7 mph...shifting to the south 5 to 8 mph in the afternoon. * Mixing Height..........6900 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ410-241330- Northeastern Trinity Including Trinity Lake- 406 PM PDT Sun Aug 23 2026 .TONIGHT... * Sky/Weather............Mostly clear then becoming mostly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...57-63 Ridges/upr slopes....53-61 * Max Humidity....... Valleys/lwr slopes...38-46 percent Ridges/upr slopes....27-35 percent * 20-Foot Winds... Valleys/lwr slopes...Southeast winds 5 to 6 mph...shifting to the northeast 5 mph after midnight. Ridges/upr slopes....Southeast winds 5 to 8 mph. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...85-93 Ridges/upr slopes....72-80 * Min Humidity....... Valleys/lwr slopes...14-19 percent Ridges/upr slopes....16-23 percent * 20-Foot Winds... Valleys/lwr slopes...East winds 5 to 6 mph...shifting to the southeast 5 to 7 mph in the afternoon. Ridges/upr slopes....Southeast winds 5 to 11 mph. * Mixing Height..........7000 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Clear then becoming partly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...57-62 Ridges/upr slopes....53-61 * Max Humidity....... Valleys/lwr slopes...45-55 percent Ridges/upr slopes....31-41 percent * 20-Foot Winds... Valleys/lwr slopes...South winds 5 to 7 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....Southeast winds 5 to 9 mph. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...84-92 Ridges/upr slopes....71-79 * Min Humidity....... Valleys/lwr slopes...14-21 percent Ridges/upr slopes....18-26 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming southeast 5 to 6 mph in the afternoon. Ridges/upr slopes....Southeast winds 5 to 9 mph. * Mixing Height..........7000 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ411-241330- Eastern Trinity Including Weaverville and Hayfork- 406 PM PDT Sun Aug 23 2026 .TONIGHT... * Sky/Weather............Mostly clear then becoming mostly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...54-61 Ridges/upr slopes....57-62 * Max Humidity....... Valleys/lwr slopes...42-52 percent Ridges/upr slopes....33-43 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 to 6 mph...shifting to the east 5 mph after midnight. Ridges/upr slopes....West winds 5 to 6 mph...shifting to the east 5 to 8 mph after midnight. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...89-96 Ridges/upr slopes....79-87 * Min Humidity....... Valleys/lwr slopes...12-16 percent Ridges/upr slopes....15-23 percent * 20-Foot Winds... Valleys/lwr slopes...Southeast winds 5 to 8 mph. Ridges/upr slopes....Southeast winds 5 to 6 mph...shifting to the south 5 to 8 mph in the afternoon. * Mixing Height..........8500 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...53-61 Ridges/upr slopes....57-61 * Max Humidity....... Valleys/lwr slopes...45-55 percent Ridges/upr slopes....36-46 percent * 20-Foot Winds... Valleys/lwr slopes...Southwest winds 5 to 6 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....Southwest winds 5 to 6 mph in the evening...becoming downslope/downvalley 2 to 4 mph. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Partly cloudy then becoming mostly cloudy then becoming partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...88-95 Ridges/upr slopes....76-84 * Min Humidity....... Valleys/lwr slopes...13-18 percent Ridges/upr slopes....16-24 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 1 to 3 mph...becoming southeast 5 mph in the afternoon. Ridges/upr slopes....East winds 5 mph...shifting to the south 5 to 7 mph in the afternoon. * Mixing Height..........7800 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ412-241330- Southern Trinity Including Ruth Lake and the Yolla Bollys- 406 PM PDT Sun Aug 23 2026 .TONIGHT... * Sky/Weather............Partly cloudy then becoming mostly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...54-61 Ridges/upr slopes....53-61 * Max Humidity....... Valleys/lwr slopes...51-61 percent Ridges/upr slopes....46-56 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 7 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....Northwest winds 5 to 6 mph...shifting to the east 5 to 8 mph after midnight. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...86-94 Ridges/upr slopes....78-86 * Min Humidity....... Valleys/lwr slopes...17-25 percent Ridges/upr slopes....15-23 percent * 20-Foot Winds... Valleys/lwr slopes...Southeast winds 5 to 7 mph...shifting to the southwest 5 to 8 mph in the afternoon. Ridges/upr slopes....South winds 5 to 10 mph. * Mixing Height..........6800 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Clear then becoming partly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...54-59 Ridges/upr slopes....52-60 * Max Humidity....... Valleys/lwr slopes...55-70 percent Ridges/upr slopes....47-57 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 to 6 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....Southwest winds 5 to 7 mph...shifting to the east 5 mph after midnight. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Partly cloudy then becoming mostly cloudy then becoming partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...83-91 Ridges/upr slopes....75-83 * Min Humidity....... Valleys/lwr slopes...22-30 percent Ridges/upr slopes....18-26 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming southwest 5 to 6 mph in the afternoon. Ridges/upr slopes....Southeast winds 5 mph...shifting to the southwest 5 to 8 mph in the afternoon. * Mixing Height..........6000 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ413-241330- Coastal Mendocino- 406 PM PDT Sun Aug 23 2026 .TONIGHT... * Sky/Weather............Partly cloudy then becoming mostly cloudy. Patchy dense fog late in the night. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...52-55 Ridges/upr slopes....51-57 * Max Humidity....... Valleys/lwr slopes...87-97 percent Ridges/upr slopes....78-93 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 to 6 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....North winds 5 to 9 mph...shifting to the southeast 5 to 6 mph after midnight. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy then becoming sunny. Patchy dense fog early in the morning. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...66-74 Ridges/upr slopes....66-74 * Min Humidity....... Valleys/lwr slopes...70-85 percent Ridges/upr slopes....63-78 percent * 20-Foot Winds... Valleys/lwr slopes...Southwest winds 5 to 8 mph. Ridges/upr slopes....Southwest winds 5 to 8 mph. * Mixing Height..........1200 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Partly cloudy then becoming mostly cloudy. Patchy fog. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...50-53 Ridges/upr slopes....48-54 * Max Humidity....... Valleys/lwr slopes...92-100 percent Ridges/upr slopes....87-100 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 mph in the evening...becoming light winds 2 to 4 mph. Ridges/upr slopes....West winds 5 to 6 mph...shifting to the north 5 mph after midnight. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy. Patchy fog in the morning. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...64-72 Ridges/upr slopes....65-73 * Min Humidity....... Valleys/lwr slopes...71-86 percent Ridges/upr slopes....66-81 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming northwest 5 to 6 mph in the afternoon. Ridges/upr slopes....Variable 2 to 4 mph...becoming northwest 5 to 6 mph in the afternoon. * Mixing Height..........1200 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ414-241330- Northern Interior Mendocino Including Leggett and Willits- 406 PM PDT Sun Aug 23 2026 .TONIGHT... * Sky/Weather............Partly cloudy then becoming mostly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...52-60 Ridges/upr slopes....55-63 * Max Humidity....... Valleys/lwr slopes...56-71 percent Ridges/upr slopes....53-63 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 6 mph...shifting to the southeast 5 mph after midnight. Ridges/upr slopes....North winds 5 to 7 mph...shifting to the east 5 to 6 mph after midnight. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...85-93 Ridges/upr slopes....77-85 * Min Humidity....... Valleys/lwr slopes...31-39 percent Ridges/upr slopes....43-53 percent * 20-Foot Winds... Valleys/lwr slopes...South winds 5 to 8 mph. Ridges/upr slopes....South winds 5 to 8 mph. * Mixing Height..........4400 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...50-57 Ridges/upr slopes....52-60 * Max Humidity....... Valleys/lwr slopes...66-81 percent Ridges/upr slopes....64-79 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 to 6 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....Southwest winds 5 to 6 mph in the evening...becoming downslope/downvalley 2 to 4 mph. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Partly cloudy then becoming mostly cloudy then becoming partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...82-90 Ridges/upr slopes....75-83 * Min Humidity....... Valleys/lwr slopes...35-43 percent Ridges/upr slopes....47-57 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming southwest 5 to 6 mph in the afternoon. Ridges/upr slopes....Variable 2 to 4 mph...becoming west 5 to 6 mph in the afternoon. * Mixing Height..........4200 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ415-241330- Northeastern Interior Mendocino Including Covelo- 406 PM PDT Sun Aug 23 2026 .TONIGHT... * Sky/Weather............Partly cloudy then becoming mostly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...54-62 Ridges/upr slopes....59-65 * Max Humidity....... Valleys/lwr slopes...51-61 percent Ridges/upr slopes....36-46 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 to 6 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....West winds 5 to 6 mph...shifting to the southeast 5 to 7 mph after midnight. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...88-96 Ridges/upr slopes....77-85 * Min Humidity....... Valleys/lwr slopes...17-22 percent Ridges/upr slopes....16-24 percent * 20-Foot Winds... Valleys/lwr slopes...South winds 5 to 8 mph. Ridges/upr slopes....South winds 5 to 8 mph. * Mixing Height..........6600 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...54-62 Ridges/upr slopes....57-63 * Max Humidity....... Valleys/lwr slopes...53-63 percent Ridges/upr slopes....41-51 percent * 20-Foot Winds... Valleys/lwr slopes...Southwest winds 5 to 7 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....Southwest winds 5 to 6 mph in the evening...becoming downslope/downvalley 2 to 4 mph. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Partly cloudy then becoming mostly cloudy then becoming partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...86-94 Ridges/upr slopes....75-83 * Min Humidity....... Valleys/lwr slopes...18-23 percent Ridges/upr slopes....17-25 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming southwest 5 to 6 mph in the afternoon. Ridges/upr slopes....Variable 2 to 4 mph...becoming southwest 5 to 7 mph in the afternoon. * Mixing Height..........6300 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ416-241330- Southeastern Interior Mendocino Including Ukiah and Potter Valley- 406 PM PDT Sun Aug 23 2026 .TONIGHT... * Sky/Weather............Partly cloudy then becoming mostly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...55-63 Ridges/upr slopes....61-69 * Max Humidity....... Valleys/lwr slopes...54-64 percent Ridges/upr slopes....39-49 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 to 7 mph...shifting to the south 5 to 6 mph after midnight. Ridges/upr slopes....West winds 5 to 8 mph in the evening...becoming light winds 2 to 5 mph. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Mostly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...87-95 Ridges/upr slopes....79-87 * Min Humidity....... Valleys/lwr slopes...23-31 percent Ridges/upr slopes....28-36 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming southwest 5 to 7 mph in the afternoon. Ridges/upr slopes....South winds 5 to 8 mph. * Mixing Height..........5500 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...53-60 Ridges/upr slopes....59-66 * Max Humidity....... Valleys/lwr slopes...63-78 percent Ridges/upr slopes....53-68 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 to 7 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....West winds 5 to 7 mph in the evening...becoming downslope/downvalley 2 to 4 mph. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Partly cloudy then becoming mostly cloudy then becoming partly cloudy. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...85-93 Ridges/upr slopes....78-86 * Min Humidity....... Valleys/lwr slopes...24-32 percent Ridges/upr slopes....27-35 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming west 5 to 6 mph in the afternoon. Ridges/upr slopes....Variable 2 to 4 mph...becoming southwest 5 to 6 mph in the afternoon. * Mixing Height..........5400 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ417-241330- Southwestern Interior Mendocino Including Boonville- 406 PM PDT Sun Aug 23 2026 .TONIGHT... * Sky/Weather............Partly cloudy then becoming mostly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...54-61 Ridges/upr slopes....55-63 * Max Humidity....... Valleys/lwr slopes...63-78 percent Ridges/upr slopes....54-69 percent * 20-Foot Winds... Valleys/lwr slopes...Northwest winds 5 to 6 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....Northwest winds 5 to 6 mph...shifting to the southeast 5 mph after midnight. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Mostly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...79-87 Ridges/upr slopes....76-84 * Min Humidity....... Valleys/lwr slopes...47-57 percent Ridges/upr slopes....48-58 percent * 20-Foot Winds... Valleys/lwr slopes...Southwest winds 5 to 7 mph. Ridges/upr slopes....Southwest winds 5 to 7 mph. * Mixing Height..........2400 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Mostly clear then becoming mostly cloudy. Patchy fog early in the morning. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...51-57 Ridges/upr slopes....52-59 * Max Humidity....... Valleys/lwr slopes...79-94 percent Ridges/upr slopes....72-87 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 to 6 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....Northwest winds 5 to 6 mph in the evening...becoming downslope/downvalley 2 to 4 mph. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy. Patchy fog early in the morning. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...77-85 Ridges/upr slopes....75-83 * Min Humidity....... Valleys/lwr slopes...49-59 percent Ridges/upr slopes....51-61 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming west 5 to 6 mph in the afternoon. Ridges/upr slopes....Variable 2 to 4 mph...becoming west 5 to 6 mph in the afternoon. * Mixing Height..........2700 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ418-241330- Northern Lake Including Gravelly Valley- 406 PM PDT Sun Aug 23 2026 .TONIGHT... * Sky/Weather............Partly cloudy then becoming mostly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...57-65 Ridges/upr slopes....61-69 * Max Humidity....... Valleys/lwr slopes...45-55 percent Ridges/upr slopes....31-41 percent * 20-Foot Winds... Valleys/lwr slopes...Southwest winds 5 to 7 mph. Ridges/upr slopes....West winds 5 to 6 mph...shifting to the east after midnight. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Mostly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...93-98 Ridges/upr slopes....79-87 * Min Humidity....... Valleys/lwr slopes...13-18 percent Ridges/upr slopes....15-23 percent * 20-Foot Winds... Valleys/lwr slopes...South winds 5 to 8 mph. Ridges/upr slopes....South winds 5 to 8 mph. * Mixing Height..........6200 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Mostly clear. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...54-62 Ridges/upr slopes....59-66 * Max Humidity....... Valleys/lwr slopes...47-57 percent Ridges/upr slopes....36-46 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 to 8 mph...shifting to the north 5 to 6 mph after midnight. Ridges/upr slopes....West winds 5 to 8 mph...shifting to the northwest 5 to 6 mph after midnight. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...91-96 Ridges/upr slopes....77-85 * Min Humidity....... Valleys/lwr slopes...13-20 percent Ridges/upr slopes....16-22 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming southwest 5 to 6 mph in the afternoon. Ridges/upr slopes....Variable 2 to 5 mph...becoming southwest 5 to 8 mph in the afternoon. * Mixing Height..........6200 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ419-241330- Eastern Lake Including Clearlake and Middletown- 406 PM PDT Sun Aug 23 2026 .TONIGHT... * Sky/Weather............Partly cloudy then becoming mostly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...57-65 Ridges/upr slopes....62-70 * Max Humidity....... Valleys/lwr slopes...53-63 percent Ridges/upr slopes....39-49 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 to 8 mph. Ridges/upr slopes....Southwest winds 5 to 8 mph. * Mixing Height..........300 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Mostly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...91-96 Ridges/upr slopes....86-90 * Min Humidity....... Valleys/lwr slopes...15-23 percent Ridges/upr slopes....15-22 percent * 20-Foot Winds... Valleys/lwr slopes...Southwest winds 5 to 8 mph. Ridges/upr slopes....Southwest winds 5 to 8 mph. * Mixing Height..........5600 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Clear then becoming partly cloudy then becoming mostly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...55-63 Ridges/upr slopes....60-68 * Max Humidity....... Valleys/lwr slopes...55-70 percent Ridges/upr slopes....46-56 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 to 8 mph. Ridges/upr slopes....West winds 5 to 8 mph. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...91-95 Ridges/upr slopes....85-90 * Min Humidity....... Valleys/lwr slopes...15-23 percent Ridges/upr slopes....16-24 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming southwest 5 to 6 mph in the afternoon. Ridges/upr slopes....West winds 5 mph...shifting to the south 5 to 6 mph in the afternoon. * Mixing Height..........6200 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ420-241330- Southern Lake Including Cobb and Konocti- 406 PM PDT Sun Aug 23 2026 .TONIGHT... * Sky/Weather............Partly cloudy then becoming mostly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...59-67 Ridges/upr slopes....66-70 * Max Humidity....... Valleys/lwr slopes...42-52 percent Ridges/upr slopes....34-41 percent * 20-Foot Winds... Valleys/lwr slopes...Southwest winds 5 to 8 mph. Ridges/upr slopes....Southwest winds 5 to 8 mph. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Mostly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...89-93 Ridges/upr slopes....80-87 * Min Humidity....... Valleys/lwr slopes...22-30 percent Ridges/upr slopes....24-32 percent * 20-Foot Winds... Valleys/lwr slopes...Southwest winds 5 to 8 mph. Ridges/upr slopes....Southwest winds 5 to 8 mph. * Mixing Height..........4200 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Mostly clear then becoming mostly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...56-64 Ridges/upr slopes....63-67 * Max Humidity....... Valleys/lwr slopes...49-59 percent Ridges/upr slopes....44-54 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 to 8 mph. Ridges/upr slopes....West winds 5 to 8 mph. * Mixing Height..........200 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...88-93 Ridges/upr slopes....80-87 * Min Humidity....... Valleys/lwr slopes...21-29 percent Ridges/upr slopes....22-30 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming southwest 5 to 6 mph in the afternoon. Ridges/upr slopes....Variable 2 to 4 mph...becoming southwest 5 to 6 mph in the afternoon. * Mixing Height..........5000 ft AGL. * Chc of Wetting Rain....0 percent. $$ CAZ421-241330- Western Lake Including Lakeport- 406 PM PDT Sun Aug 23 2026 .TONIGHT... * Sky/Weather............Partly cloudy then becoming mostly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...58-65 Ridges/upr slopes....63-71 * Max Humidity....... Valleys/lwr slopes...51-61 percent Ridges/upr slopes....34-44 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 to 7 mph. Ridges/upr slopes....West winds 5 to 7 mph. * Mixing Height..........400 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy then becoming sunny. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...86-93 Ridges/upr slopes....83-88 * Min Humidity....... Valleys/lwr slopes...21-29 percent Ridges/upr slopes....19-25 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming southwest 5 to 6 mph in the afternoon. Ridges/upr slopes....South winds 5 to 7 mph. * Mixing Height..........5800 ft AGL. * Chc of Wetting Rain....0 percent. .MONDAY NIGHT... * Sky/Weather............Partly cloudy. * Chance Lightning.......0%. * Min Temperature....... Valleys/lwr slopes...55-62 Ridges/upr slopes....59-67 * Max Humidity....... Valleys/lwr slopes...54-64 percent Ridges/upr slopes....45-55 percent * 20-Foot Winds... Valleys/lwr slopes...West winds 5 to 7 mph in the evening...becoming downslope/downvalley 2 to 4 mph. Ridges/upr slopes....Northwest winds 5 to 8 mph. * Mixing Height..........300 ft AGL. * Chc of Wetting Rain....0 percent. .TUESDAY... * Sky/Weather............Mostly cloudy then becoming partly cloudy. * Chance Lightning.......0%. * Max Temperature....... Valleys/lwr slopes...85-92 Ridges/upr slopes....81-86 * Min Humidity....... Valleys/lwr slopes...22-30 percent Ridges/upr slopes....21-26 percent * 20-Foot Winds... Valleys/lwr slopes...Upslope/upvalley 2 to 4 mph...becoming southwest 5 to 6 mph in the afternoon. Ridges/upr slopes....Variable 2 to 4 mph...becoming southwest 5 to 6 mph in the afternoon. * Mixing Height..........6100 ft AGL. * Chc of Wetting Rain....0 percent. $$ .EXTENDED FORECAST FOR DAYS 3 THROUGH 5... ...Northwest California Coast... .WEDNESDAY...Mostly cloudy. Patchy fog. Lows in the lower to mid 50s. Highs 62 to 70. North winds 5 mph. .THURSDAY...Mostly cloudy. Patchy fog. Lows in the lower to mid 50s. Highs 61 to 68. North winds 5 mph. .FRIDAY...Mostly cloudy. Patchy fog. Lows in the lower 50s. Highs 60 to 67. North winds 5 mph. ...Northwest California Interior... .WEDNESDAY...Partly cloudy. Lows 54 to 62. Highs 83 to 94. Northwest winds 5 mph. .THURSDAY...Partly cloudy. Lows 54 to 62. Highs 82 to 94. Northwest winds 5 mph. .FRIDAY...Mostly clear. Lows 54 to 62. Highs 81 to 93. Northwest winds 5 mph. .6 to 10 DAY OUTLOOK...Saturday August 29 THROUGH Wednesday September 2, 2026... FOR NW CALIF...NEAR NORMAL TEMPERATURES AND NEAR NORMAL PRECIPITATION. $$ visit us at www.weather.gov/eureka