FNUS55 KFGZ 230753 FWFFGZ Fire Weather Planning Forecast for northern Arizona National Weather Service Flagstaff AZ 1253 AM MST Sun Aug 23 2026 +++ Thunderstorms imply strong gusty and erratic winds +++ +++ 20-foot wind forecast of 'light winds' indicates mainly terrain driven winds +++ +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ .DISCUSSION...Today and Monday...Expect daily chances for showers/thunderstorms, with the greatest coverage across the higher terrain. Activity will ramp up around midday then continue through the evening hours both days. Outside of gusty and erratic storm driven winds, look for variable winds generally 10 mph or less. Tuesday through Thursday...Drier conditions will gradually return, with activity becoming limited to the White Mountains by Wednesday and Thursday. Daytime highs are forecast to become quite hot, reaching 10-15 degrees above normal. Look for southwest winds 5-15 mph each afternoon. AZZ115-240115- Western Mogollon Rim- Including the cities of Flagstaff, Williams, and Munds Park 1253 AM MST Sun Aug 23 2026 .TODAY... Sky/weather.........Partly cloudy then becoming mostly cloudy. Chance of showers and thunderstorms in the afternoon. Max temperature.....81-91. 24 hr trend......Little change. Min humidity........20-25 percent. 24 hr trend......Little change. 20-foot winds.......Light winds becoming southwest around 10 mph in the afternoon. Free winds..........Southwest 5 to 15 mph. PoP.................50 percent. Chance lightning....0 percent increasing to 50 percent in the afternoon. Mixing height.......4300 ft AGL increasing to 9700 ft AGL in the afternoon. Transport winds.....Southeast around 5 knots shifting to the southwest in the afternoon. Max Ventilation.....Excellent. .TONIGHT... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the evening. Min temperature.....51-61. 24 hr trend......Little change. Max humidity........59-79 percent. 24 hr trend......7 percent wetter. 20-foot winds.......Light winds. Free winds..........Northwest 10 to 20 mph. PoP.................20 percent. Chance lightning....20 percent decreasing to 0 percent after midnight. .MONDAY... Sky/weather.........Partly cloudy then becoming mostly cloudy. Chance of showers and thunderstorms in the afternoon. Max temperature.....79-89. 24 hr trend......Little change. Min humidity........21-31 percent. 24 hr trend......Little change. 20-foot winds.......West winds 10 to 15 mph. Free winds..........Northwest 5 to 10 mph shifting to the west in the afternoon. PoP.................50 percent. Chance lightning....0 percent increasing to 50 percent in the afternoon. Mixing height.......4500 ft AGL increasing to 7300 ft AGL in the afternoon. Transport winds.....South 5 to 10 knots. Max Ventilation.....Good. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...Mostly clear. Slight chance of showers and thunderstorms. Highs 82 to 92. Light winds becoming east around 10 mph in the morning, then shifting to the southwest in the afternoon. .WEDNESDAY...Mostly clear. Slight chance of showers and thunderstorms. Highs 84 to 94. Light winds becoming southwest around 10 mph in the afternoon. .THURSDAY...Mostly clear. Highs 84 to 94. Light winds becoming west around 10 mph with gusts up to 20 mph in the afternoon. $$ AZZ106-240115- Grand Canyon Country- Including the cities of Grand Canyon Village, Tusayan, Supai, and Grand Canyon North Rim 1253 AM MST Sun Aug23 2026 .TODAY... Sky/weather.........Partly cloudy. Chance of showers and thunderstorms in the afternoon. Max temperature.....95-105 at the River...82-92 at the Rim. 24 hr trend......Little change. Min humidity........16 percent at the River...17-22 percent at the Rim. 24 hr trend......Little change. 20-foot winds.......Light winds becoming west around 10 mph in the afternoon. Free winds..........Southwest 5 to 15 mph. PoP.................30 percent. Chance lightning....0 percent increasing to 30 percent in the afternoon. Mixing height.......4300 ft AGL increasing to 9300 ft AGL in the afternoon. Transport winds.....Southwest 5 to 10 knots. Max Ventilation.....Excellent. .TONIGHT... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the evening. Min temperature.....68-74 at the River...57-67 at the Rim. 24 hr trend......Little change. Max humidity........32-52 percent at the River...35-55 percent at the Rim. 24 hr trend......7 percent wetter. 20-foot winds.......Light winds. Free winds..........West 5 to 15 mph. PoP.................20 percent. Chance lightning....20 percent decreasing to 0 percent after midnight. .MONDAY... Sky/weather.........Partly cloudy then becoming mostly cloudy. Chance of showers and thunderstorms in the afternoon. Max temperature.....93-103 at the River...80-90 at the Rim. 24 hr trend......Little change. Min humidity........18 percent at the River...19-24 percent at the Rim. 24 hr trend......Little change. 20-foot winds.......Light winds. Free winds..........Southwest 5 to 10 mph. PoP.................30 percent. Chance lightning....0 percent increasing to 30 percent in the afternoon. Mixing height.......4600 ft AGL increasing to 7700 ft AGL in the afternoon. Transport winds.....South 5 to 10 knots. Max Ventilation.....Good. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...Mostly clear. Slight chance of showers and thunderstorms. Highs 94 to 104. Light winds. .WEDNESDAY...Mostly clear. Highs 97 to 107. Light winds becoming southwest around 10 mph in the afternoon. .THURSDAY...Mostly clear. Highs 97 to 107. Light winds becoming west around 10 mph in the afternoon. $$ AZZ108-240115- Yavapai County Mountains- Including the cities of Prescott, Seligman, Ash Fork, and Crown King 1253 AM MST Sun Aug 23 2026 .TODAY... Sky/weather.........Partly cloudy then becoming mostly cloudy. Chance of showers and thunderstorms in the afternoon. Max temperature.....Around 91 below 5000 feet...around 87 above 5000 feet. 24 hr trend......Little change. Min humidity........16-21 percent. 24 hr trend......Little change. 20-foot winds.......Southwest winds 10 to 15 mph. Free winds..........Southwest 5 to 15 mph. PoP.................30 percent. Chance lightning....0 percent increasing to 30 percent in the afternoon. Mixing height.......3800 ft AGL increasing to 11900 ft AGL in the afternoon. Transport winds.....East around 5 knots shifting to the southwest in the afternoon. Max Ventilation.....Excellent. .TONIGHT... Sky/weather.........Partly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening. Min temperature.....Around 72 below 5000 feet...around 69 above 5000 feet. 24 hr trend......Little change. Max humidity........55-75 percent. 24 hr trend......13 percent wetter. 20-foot winds.......North winds around 10 mph in the evening becoming light. Free winds..........West 5 to 15 mph. PoP.................30 percent. Chance lightning....20 percent decreasing to 10 percent after midnight. .MONDAY... Sky/weather.........Partly cloudy then becoming mostly cloudy. Chance of showers and thunderstorms in the afternoon. Max temperature.....Around 90 below 5000 feet...around 85 above 5000 feet. 24 hr trend......Little change. Min humidity........21-26 percent. 24 hr trend......Little change. 20-foot winds.......Light winds becoming west around 10 mph in the afternoon. Free winds..........South 5 to 10 mph. PoP.................30 percent. Chance lightning....0 percent increasing to 30 percent in the afternoon. Mixing height.......4000 ft AGL increasing to 8200 ft AGL in the afternoon. Transport winds.....East around 5 knots shifting to the southwest in the afternoon. Max Ventilation.....Very good. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...Mostly clear. Highs 87 to 96. North winds 10 to 15 mph shifting to the west in the afternoon. .WEDNESDAY...Mostly clear. Highs 89 to 98. Light winds becoming northeast around 10 mph in the morning, then shifting to the southwest in the afternoon. .THURSDAY...Mostly clear. Highs 89 to 98. Light winds becoming southwest around 10 mph with gusts up to 20 mph in the afternoon. $$ AZZ137-240115- Yavapai County Valleys and Basins- Including the cities of Cottonwood, Camp Verde, Cordes Junction, and Bagdad 1253 AM MST Sun Aug 23 2026 .TODAY... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the afternoon. Max temperature.....98-108. 24 hr trend......Little change. Min humidity........14-19 percent. 24 hr trend......Little change. 20-foot winds.......Southeast winds around 10 mph shifting to the southwest in the afternoon. Free winds..........South 5 to 15 mph. PoP.................20 percent. Chance lightning....0 percent increasing to 20 percent in the afternoon. .TONIGHT... Sky/weather.........Partly cloudy. Chance of showers and slight chance of thunderstorms in the evening. Min temperature.....65-75. 24 hr trend......Little change. Max humidity........50-70 percent. 24 hr trend......12 percent wetter. 20-foot winds.......North winds around 10 mph in the evening becoming light. Free winds..........West 5 to 15 mph shifting to the north 5 to 10 mph after midnight. PoP.................30 percent. Chance lightning....20 percent decreasing to 10 percent after midnight. .MONDAY... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the afternoon. Max temperature.....94-104. 24 hr trend......Little change. Min humidity........19-24 percent. 24 hr trend......Little change. 20-foot winds.......Light winds becoming west around 10 mph in the afternoon. Free winds..........Southeast 5 to 10 mph shifting to the southwest in the afternoon. PoP.................20 percent. Chance lightning....0 percent increasing to 20 percent in the afternoon. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...Mostly clear. Highs 98 to 108. North winds 10 to 15 mph shifting to the southwest in the afternoon. .WEDNESDAY...Mostly clear. Highs 99 to 109. Northeast winds 10 to 15 mph shifting to the southwest in the afternoon. .THURSDAY...Mostly clear. Highs 100 to 110. Northeast winds around 10 mph early in the morning becoming light, then becoming southwest around 10 mph with gusts up to 20 mph in the afternoon. $$ AZZ138-240115- Oak Creek and Sycamore Canyons- Including the cities of Sedona and Village of Oak Creek 1253 AM MST Sun Aug 23 2026 .TODAY... Sky/weather.........Partly cloudy then becoming mostly cloudy. Chance of showers and thunderstorms in the afternoon. Max temperature.....90-100. 24 hr trend......Little change. Min humidity........15-20 percent. 24 hr trend......Little change. 20-foot winds.......Southeast winds around 10 mph shifting to the southwest in the afternoon. Free winds..........Southwest 5 to 10 mph. PoP.................30 percent. Chance lightning....0 percent increasing to 30 percent in the afternoon. .TONIGHT... Sky/weather.........Partly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening. Min temperature.....59-69. 24 hr trend......Little change. Max humidity........43-63 percent. 24 hr trend......Little change. 20-foot winds.......North winds around 10 mph in the evening becoming light. Free winds..........Northwest 10 to 20 mph. PoP.................30 percent. Chance lightning....20 percent decreasing to 0 percent after midnight. .MONDAY... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the afternoon. Max temperature.....88-98. 24 hr trend......Little change. Min humidity........18-23 percent. 24 hr trend......Little change. 20-foot winds.......Light winds becoming west around 10 mph in the afternoon. Free winds..........Northwest around 5 mph shifting to the southwest in the afternoon. PoP.................20 percent. Chance lightning....0 percent increasing to 20 percent in the afternoon. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...Mostly clear. Highs 91 to 101. Northeast winds 10 to 15 mph shifting to the southwest in the afternoon. .WEDNESDAY...Mostly clear. Highs 92 to 102. Northeast winds 10 to 15 mph shifting to the southwest in the afternoon. .THURSDAY...Mostly clear. Highs 92 to 102. Northeast winds around 10 mph early in the morning becoming light, then becoming southwest around 10 mph in the afternoon. $$ AZZ105-240115- Marble and Glen Canyons- Including the cities of Page and Lees Ferry 1253 AM MST Sun Aug 23 2026 /153 AM MDT Sun Aug 23 2026/ .TODAY... Sky/weather.........Partly cloudy. Chance of showers and thunderstorms in the afternoon. Max temperature.....92-102. 24 hr trend......Little change. Min humidity........13-18 percent. 24 hr trend......Little change. 20-foot winds.......Light winds becoming southwest around 10 mph in the afternoon. Free winds..........Southwest 5 to 15 mph. PoP.................30 percent. Chance lightning....0 percent increasing to 30 percent in the afternoon. .TONIGHT... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the evening. Min temperature.....68-75. 24 hr trend......Little change. Max humidity........29-49 percent. 24 hr trend......Little change. 20-foot winds.......Southwest winds around 10 mph in the evening becoming light. Free winds..........West 10 to 20 mph. PoP.................10 percent. Chance lightning....10 percent decreasing to 0 percent after midnight. .MONDAY... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the afternoon. Max temperature.....90-100. 24 hr trend......Little change. Min humidity........14-19 percent. 24 hr trend......Little change. 20-foot winds.......Light winds becoming west around 10 mph in the afternoon. Free winds..........West 5 to 10 mph. PoP.................20 percent. Chance lightning....0 percent increasing to 20 percent in the afternoon. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...Mostly clear. Slight chance of showers and thunderstorms. Highs 91 to 101. Light winds becoming west around 10 mph in the afternoon. .WEDNESDAY...Mostly clear. Highs 93 to 103. Light winds becoming southwest around 10 mph in the afternoon. .THURSDAY...Mostly clear. Highs 94 to 104. Light winds becoming west around 10 mph in the afternoon. $$ AZZ104-240115- Kaibab Plateau- Including the cities of Jacob Lake and Fredonia 1253 AM MST Sun Aug 23 2026 .TODAY... Sky/weather.........Partly cloudy. Chance of showers and thunderstorms in the afternoon. Max temperature.....87-97 below 7000 feet...79-87 above 7000 feet. 24 hr trend......Little change. Min humidity........14-19 percent below 7000 feet...18-23 percent above 7000 feet. 24 hr trend......Little change. 20-foot winds.......Southwest winds 10 to 15 mph. Free winds..........Southwest 10 to 20 mph. PoP.................30 percent. Chance lightning....0 percent increasing to 30 percent in the afternoon. .TONIGHT... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the evening. Min temperature.....62-69 below 7000 feet...53-63 above 7000 feet. 24 hr trend......Little change. Max humidity........32-52 percent below 7000 feet...44-64 percent above 7000 feet. 24 hr trend......Little change. 20-foot winds.......Southwest winds 10 to 15 mph. Free winds..........West 10 to 20 mph. PoP.................10 percent. Chance lightning....10 percent. .MONDAY... Sky/weather.........Partly cloudy then becoming mostly cloudy. Chance of showers and thunderstorms in the afternoon. Max temperature.....84-94 below 7000 feet...76-85 above 7000 feet. 24 hr trend......Little change. Min humidity........18-23 percent below 7000 feet...19-29 percent above 7000 feet. 24 hr trend......Little change. 20-foot winds.......Light winds becoming west around 10 mph in the afternoon. Free winds..........Southwest 5 to 10 mph. PoP.................30 percent. Chance lightning....0 percent increasing to 30 percent in the afternoon. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...Mostly clear. Slight chance of showers and thunderstorms. Highs 85 to 95. Light winds becoming southwest around 10 mph in the afternoon. .WEDNESDAY...Mostly clear. Highs 87 to 97. Light winds becoming southwest around 10 mph in the afternoon. .THURSDAY...Mostly clear. Highs 88 to 98. Light winds becoming west around 10 mph in the afternoon. $$ AZZ107-240115- Coconino Plateau- Including the city of Valle 1253 AM MST Sun Aug 23 2026 /153 AM MDT Sun Aug 23 2026/ .TODAY... Sky/weather.........Partly cloudy. Chance of showers and thunderstorms in the afternoon. Max temperature.....85-92 on the Plateau...97-107 at the River. 24 hr trend......Little change. Min humidity........20 percent on the Plateau...15 percent at the River. 24 hr trend......Little change. 20-foot winds.......Southwest winds 10 to 15 mph. Free winds..........Southwest 5 to 15 mph. PoP.................30 percent. Chance lightning....0 percent increasing to 30 percent in the afternoon. .TONIGHT... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the evening. Min temperature.....57-67 on the Plateau...66-76 at the River. 24 hr trend......Little change. Max humidity........54-74 percent on the Plateau...34-54 percent at the River. 24 hr trend......10 percent wetter. 20-foot winds.......South winds around 10 mph in the evening becoming light. Free winds..........West 5 to 15 mph. PoP.................20 percent. Chance lightning....20 percent decreasing to 0 percent after midnight. .MONDAY... Sky/weather.........Partly cloudy then becoming mostly cloudy. Chance of showers and thunderstorms in the afternoon. Max temperature.....83-90 on the Plateau...94-104 at the River. 24 hr trend......Little change. Min humidity........23 percent on the Plateau...19 percent at the River. 24 hr trend......Little change. 20-foot winds.......Light winds becoming southwest around 10 mph in the afternoon. Free winds..........Southwest 5 to 10 mph. PoP.................40 percent. Chance lightning....0 percent increasing to 40 percent in the afternoon. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...Mostly clear. Slight chance of showers and thunderstorms. Highs 85 to 95. Light winds becoming southwest around 10 mph in the afternoon. .WEDNESDAY...Mostly clear. Highs 88 to 97. Light winds becoming southwest around 10 mph in the afternoon. .THURSDAY...Mostly clear. Highs 88 to 97. Light winds becoming west around 10 mph with gusts up to 20 mph in the afternoon. $$ AZZ109-240115- Northeast Plateaus and Mesas Hwy 264 Northward- Including the cities of Keams Canyon and Kaibito 1253 AM MST Sun Aug 23 2026 .TODAY... Sky/weather.........Partly cloudy. Chance of showers and thunderstorms in the afternoon. Max temperature.....88-95. 24 hr trend......Little change. Min humidity........19 percent. 24 hr trend......Little change. 20-foot winds.......Light winds becoming west around 10 mph in the afternoon. Free winds..........West 5 to 10 mph shifting to the southwest 10 to 20 mph in the afternoon. PoP.................30 percent. Chance lightning....0 percent increasing to 30 percent in the afternoon. .TONIGHT... Sky/weather.........Mostly cloudy then becoming partly cloudy. Slight chance of showers and thunderstorms in the evening. Min temperature.....60-69. 24 hr trend......Little change. Max humidity........44-64 percent. 24 hr trend......Little change. 20-foot winds.......Southwest winds around 10 mph in the evening becoming light. Free winds..........Southwest 5 to 15 mph shifting to the northwest 5 to 10 mph after midnight. PoP.................10 percent. Chance lightning....10 percent decreasing to 0 percent after midnight. .MONDAY... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the afternoon. Max temperature.....87-95. 24 hr trend......Little change. Min humidity........18 percent. 24 hr trend......Little change. 20-foot winds.......Light winds becoming west around 10 mph in the afternoon. Free winds..........North 5 to 10 mph shifting to the west 10 to 20 mph in the afternoon. PoP.................10 percent. Chance lightning....0 percent increasing to 10 percent in the afternoon. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...Mostly clear. Highs 88 to 96. Light winds. .WEDNESDAY...Mostly clear. Highs 90 to 97. Light winds becoming west around 10 mph in the afternoon. .THURSDAY...Mostly clear. Highs 90 to 98. Light winds becoming west around 10 mph in the afternoon. $$ AZZ140-240115- Northeast Plateaus and Mesas South of Hwy 264- Including the cities of Dilkon and Kykotsmovi 1253 AM MST Sun Aug 23 2026 /153 AM MDT Sun Aug 23 2026/ .TODAY... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the afternoon. Max temperature.....87-95. 24 hr trend......Little change. Min humidity........19 percent. 24 hr trend......Little change. 20-foot winds.......Light winds becoming west around 10 mph in the afternoon. Free winds..........West 5 to 15 mph. PoP.................20 percent. Chance lightning....0 percent increasing to 20 percent in the afternoon. .TONIGHT... Sky/weather.........Mostly cloudy. Slight chance of showers and thunderstorms in the evening. Min temperature.....Around 63. 24 hr trend......Little change. Max humidity........44-64 percent. 24 hr trend......Little change. 20-foot winds.......West winds around 10 mph in the evening becoming light. Free winds..........West 5 to 15 mph. PoP.................10 percent. Chance lightning....10 percent decreasing to 0 percent after midnight. .MONDAY... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the afternoon. Max temperature.....87-94. 24 hr trend......Little change. Min humidity........18 percent. 24 hr trend......Little change. 20-foot winds.......Light winds becoming west around 10 mph in the afternoon. Free winds..........West 5 to 10 mph. PoP.................10 percent. Chance lightning....0 percent increasing to 10 percent in the afternoon. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...Mostly clear. Highs 89 to 96. Light winds becoming southwest around 10 mph in the afternoon. .WEDNESDAY...Mostly clear. Highs 89 to 97. Light winds becoming southwest around 10 mph in the afternoon. .THURSDAY...Mostly clear. Highs 90 to 97. Light winds becoming west around 10 mph in the afternoon. $$ AZZ110-240115- Chinle Valley- Including the cities of Canyon De Chelly, Chinle, and Kayenta 153 AM MDT Sun Aug 23 2026 .TODAY... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the afternoon. Max temperature.....88-94. 24 hr trend......Little change. Min humidity........19 percent. 24 hr trend......Little change. 20-foot winds.......South winds around 10 mph shifting to the west in the afternoon. Free winds..........West 5 to 10 mph increasing to 10 to 20 mph in the afternoon. PoP.................20 percent. Chance lightning....0 percent increasing to 20 percent in the afternoon. .TONIGHT... Sky/weather.........Mostly cloudy then becoming partly cloudy. Slight chance of showers and thunderstorms in the evening. Min temperature.....60-68. 24 hr trend......Little change. Max humidity........47-67 percent. 24 hr trend......Little change. 20-foot winds.......South winds 10 to 15 mph. Free winds..........West 10 to 20 mph decreasing to 5 to 10 mph after midnight. PoP.................10 percent. Chance lightning....10 percent decreasing to 0 percent after midnight. .MONDAY... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the afternoon. Max temperature.....87-94.24 hr trend......Little change. Min humidity........17 percent. 24 hr trend......Little change. 20-foot winds.......Light winds becoming northwest around 10 mph in the afternoon. Free winds..........Northwest 5 to 10 mph shifting to the west in the afternoon. PoP.................20 percent. Chance lightning....0 percent increasing to 20 percent in the afternoon. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...Mostly clear. Slight chance of showers and thunderstorms. Highs 88 to 95. Light winds becoming west around 10 mph in the afternoon. .WEDNESDAY...Mostly clear. Slight chance of showers and thunderstorms. Highs 89 to 96. Light winds becoming west around 10 mph in the afternoon. .THURSDAY...Mostly clear. Highs 90 to 97. Light winds becoming west around 10 mph in the afternoon. $$ AZZ111-240115- Chuska Mountains and Defiance Plateau- Including the cities of Window Rock and Ganado 1253 AM MST Sun Aug 23 2026 /153 AM MDT Sun Aug 23 2026/ .TODAY... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the afternoon. Max temperature.....82-92. 24 hr trend......Little change. Min humidity........17-22 percent. 24 hr trend......Little change. 20-foot winds.......Light winds becoming west around 10 mph in the afternoon. Free winds..........West 5 to 10 mph increasing to 10 to 20 mph in the afternoon. PoP.................20 percent. Chance lightning....0 percent increasing to 20 percent in the afternoon. Mixing height.......4200 ft AGL increasing to 8800 ft AGL in the afternoon. Transport winds.....East around 5 knots shifting to the west in the afternoon. Max Ventilation.....Very good. .TONIGHT... Sky/weather.........Mostly cloudy then becoming partly cloudy. Slight chance of showers and thunderstorms in the evening. Min temperature.....56-66. 24 hr trend......Little change. Max humidity........50-70 percent. 24 hr trend......Little change. 20-foot winds.......Southwest winds around 10 mph in the evening becoming light. Free winds..........West 10 to 20 mph decreasing to 5 to 10 mph after midnight. PoP.................20 percent. Chance lightning....20 percent decreasing to 0 percent after midnight. .MONDAY... Sky/weather.........Partly cloudy then becoming mostly cloudy. Slight chance of showers and thunderstorms in the afternoon. Max temperature.....82-92. 24 hr trend......Little change. Min humidity........15-20 percent. 24 hr trend......Little change. 20-foot winds.......Light winds becoming west around 10 mph in the afternoon. Free winds..........Southwest 5 to 10 mph. PoP.................20 percent. Chance lightning....0 percent increasing to 20 percent in the afternoon. Mixing height.......4300 ft AGL increasing to 12500 ft AGL in the afternoon. Transport winds.....Southeast around 5 knots shifting to the southwest in the afternoon. Max Ventilation.....Excellent. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Highs 83 to 93. Light winds becoming west around 10 mph in the afternoon. .WEDNESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Highs 84 to 94. Light winds becoming west around 10 mph in the afternoon. .THURSDAY...Partly cloudy. Highs 84 to 94. Light winds becoming west around 10 mph in the afternoon. $$ AZZ139-240115- Black Mesa Area- 1253 AM MST Sun Aug 23 2026 /153 AM MDT Sun Aug 23 2026/ .TODAY... Sky/weather.........Partly cloudy. Chance of showers and thunderstorms in the afternoon. Max temperature.....82-89. 24 hr trend......Little change. Min humidity........20 percent. 24 hr trend......Little change. 20-foot winds.......Light winds becoming west around 10 mph in the afternoon. Free winds..........Northwest 5 to 10 mph shifting to the west 10 to 20 mph in the afternoon. PoP.................30 percent. Chance lightning....0 percent increasing to 30 percent in the afternoon. .TONIGHT... Sky/weather.........Mostly cloudy. Slight chance of showers and thunderstorms in the evening. Min temperature.....59-67. 24 hr trend......Little change. Max humidity........41-61 percent. 24 hr trend......Little change. 20-foot winds.......Southwest winds around 10 mph in the evening becoming light. Free winds..........West 5 to 15 mph. PoP.................10 percent. Chance lightning....10 percent decreasing to 0 percent after midnight. .MONDAY... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the afternoon. Max temperature.....82-89. 24 hr trend......Little change. Min humidity........19 percent. 24 hr trend......Little change. 20-foot winds.......Light winds. Free winds..........North 5 to 10 mph shifting to the northwest 10 to 20 mph in the afternoon. PoP.................20 percent. Chance lightning....0 percent increasing to 20 percent in the afternoon. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Highs 83 to 90. Light winds. .WEDNESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Highs 84 to 91. Light winds becoming west around 10 mph in the afternoon. .THURSDAY...Mostly clear. Highs 85 to 92. Light winds becoming west around 10 mph in the afternoon. $$ AZZ112-240115- Little Colorado River Valley in Coconino County- Including the cities of Wupatki National Monument and Tuba City 1253 AM MST Sun Aug 23 2026 /153 AM MDT Sun Aug 23 2026/ .TODAY... Sky/weather.........Partly cloudy then becoming mostly cloudy. Chance of showers and thunderstorms in the afternoon. Max temperature.....88-98. 24 hr trend......Little change. Min humidity........17-22 percent. 24 hr trend......Little change. 20-foot winds.......Light winds becoming southwest around 10 mph in the afternoon. Free winds..........Southwest 5 to 15 mph. PoP.................40 percent. Chance lightning....0 percent increasing to 40 percent in the afternoon. .TONIGHT... Sky/weather.........Mostly cloudy then becoming partly cloudy. Slight chance of showers and thunderstorms in the evening. Min temperature.....61-66. 24 hr trend......Little change. Max humidity........47-67 percent. 24 hr trend......Little change. 20-foot winds.......West winds around 10 mph in the evening becoming light. Free winds..........Northwest 10 to 20 mph decreasing to 5 to 10 mph after midnight. PoP.................20 percent. Chance lightning....20 percent decreasing to 0 percent after midnight. .MONDAY... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the afternoon. Max temperature.....87-97. 24 hr trend......Little change. Min humidity........16-21 percent. 24 hr trend......Little change. 20-foot winds.......Light winds becoming west around 10 mph in the afternoon. Free winds..........Northeast 5 to 10 mph shifting to the southeast in the afternoon. PoP.................20 percent. Chance lightning....0 percent increasing to 20 percent in the afternoon. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...Mostly clear. Slight chance of showers and thunderstorms. Highs 89 to 99. Light winds becoming south around 10 mph in the afternoon. .WEDNESDAY...Mostly clear. Slight chance of showers and thunderstorms. Highs 91 to 101. Light winds becoming southwest around 10 mph in the afternoon. .THURSDAY...Mostly clear. Highs 92 to 102. Light winds becoming west around 10 mph in the afternoon. $$ AZZ113-240115- Little Colorado River Valley in Navajo County- Including the cities of Winslow, Holbrook, and Snowflake 1253 AM MST Sun Aug 23 2026 /153 AM MDT Sun Aug 23 2026/ .TODAY... Sky/weather.........Partly cloudy then becoming mostly cloudy. Chance of showers and thunderstorms in the afternoon. Max temperature.....89-95. 24 hr trend......Little change. Min humidity........17-22 percent. 24 hr trend......Little change. 20-foot winds.......Light winds becoming west around 10 mph in the afternoon. Free winds..........Southwest 5 to 10 mph increasing to 10 to 20 mph in the afternoon. PoP.................40 percent. Chance lightning....0 percent increasing to 40 percent in the afternoon. Mixing height.......4200 ft AGL. Transport winds.....South around 5 knots shifting to the west in the afternoon. Max Ventilation.....Good. .TONIGHT... Sky/weather.........Mostly cloudy. Slight chance of showers and thunderstorms in the evening. Min temperature.....Around 63. 24 hr trend......Little change. Max humidity........50-70 percent. 24 hr trend......Little change. 20-foot winds.......Southwest winds around 10 mph in the evening becoming light. Free winds..........Northwest 10 to 20 mph decreasing to 5 to 10 mph after midnight. PoP.................20 percent. Chance lightning....20 percent decreasing to 0 percent after midnight. .MONDAY... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the afternoon. Max temperature.....89-95. 24 hr trend......Little change. Min humidity........15-20 percent. 24 hr trend......Little change. 20-foot winds.......Light winds becoming northwest around 10 mph in the afternoon. Free winds..........North 5 to 10 mph shifting to the west in the afternoon. PoP.................20 percent. Chance lightning....0 percent increasing to 20 percent in the afternoon. Mixing height.......1500 ft AGL increasing to 6300 ft AGL in the afternoon. Transport winds.....East around 5 knots shifting to the west in the afternoon. Max Ventilation.....Fair. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...Mostly clear. Slight chance of showers and thunderstorms. Highs 90 to 97. Light winds becoming west around 10 mph in the afternoon. .WEDNESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Highs 91 to 98. Light winds becoming west around 10 mph in the afternoon. .THURSDAY...Mostly clear. Highs 92 to 99. Light winds becoming west around 10 mph in the afternoon. $$ AZZ114-240115- Little Colorado River Valley in Apache County- Including the cities of St. Johns and Springerville 1253 AM MST Sun Aug 23 2026 /153 AM MDT Sun Aug 23 2026/ .TODAY... Sky/weather.........Partly cloudy then becoming mostly cloudy. Chance of showers and thunderstorms in the afternoon. Max temperature.....85-95. 24 hr trend......Little change. Min humidity........16-21 percent. 24 hr trend......Little change. 20-foot winds.......Light winds becoming southwest around 10 mph in the afternoon. Free winds..........Southwest 10 to 20 mph decreasing to 5 to 10 mph in the afternoon. PoP.................30 percent. Chance lightning....0 percent increasing to 30 percent in the afternoon. .TONIGHT... Sky/weather.........Mostly cloudy. Slight chance of showers and thunderstorms in the evening. Min temperature.....Around 63 below 7000 feet...around 60 above 7000 feet. 24 hr trend......Little change. Max humidity........56 percent below 7000 feet...59 percent above 7000 feet. 24 hr trend......Little change. 20-foot winds.......Light winds. Free winds..........West 5 to 15 mph. PoP.................20 percent. Chance lightning....20 percent decreasing to 0 percent after midnight. .MONDAY... Sky/weather.........Partly cloudy then becoming mostly cloudy. Slight chance of showers and thunderstorms in the afternoon. Max temperature.....85-95. 24 hr trend......Little change. Min humidity........15-20 percent. 24 hr trend......Little change. 20-foot winds.......Light winds becoming west around 10 mph in the afternoon. Free winds..........South around 5 mph shifting to the southwest in the afternoon. PoP.................20 percent. Chance lightning....0 percent increasing to 20 percent in the afternoon. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Highs 87 to 96. Light winds becoming southwest around 10 mph in the afternoon. .WEDNESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Highs 88 to 97. Light winds becoming southeast around 10 mph in the morning, then shifting to the west in the afternoon. .THURSDAY...Partly cloudy. Highs 88 to 98. Southeast winds around 10 mph early in the morning becoming light, then becoming west around 10 mph in the afternoon. $$ AZZ116-240115- Eastern Mogollon Rim- Including the cities of Heber, Happy Jack, and Forest Lakes 1253 AM MST Sun Aug 23 2026 .TODAY... Sky/weather.........Partly cloudy then becoming mostly cloudy. Chance of showers and thunderstorms in the afternoon. Max temperature.....88-95 below 5000 feet...84-92 above 5000 feet. 24 hr trend......Little change. Min humidity........19-24 percent. 24 hr trend......Little change. 20-foot winds.......Light winds becoming west around 10 mph in the afternoon. Free winds..........Southwest 5 to 15 mph. PoP.................50 percent. Chance lightning....0 percent increasing to 50 percent in the afternoon. .TONIGHT... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the evening. Min temperature.....63-68 below 5000 feet...58-65 above 5000 feet. 24 hr trend......Little change. Max humidity........40-60 percent below 5000 feet...47-67 percent above 5000 feet. 24 hr trend......Little change. 20-foot winds.......Northwest winds around 10 mph in the evening becoming light. Free winds..........Northwest 10 to 20 mph. PoP.................20 percent. Chance lightning....20 percent decreasing to 0 percent after midnight. .MONDAY... Sky/weather.........Partly cloudy then becoming mostly cloudy. Chance of showers and thunderstorms in the afternoon. Max temperature.....87-95 below 5000 feet...83-92 above 5000 feet. 24 hr trend......Little change. Min humidity........19-24 percent. 24 hr trend......Little change. 20-foot winds.......Light winds becoming northwest around 10 mph in the afternoon. Free winds..........Northeast 5 to 10 mph shifting to the south in the afternoon. PoP.................30 percent. Chance lightning....0 percent increasing to 30 percent in the afternoon. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Highs 84 to 94. Light winds becoming northeast around 10 mph in the morning, then shifting to the west in the afternoon. .WEDNESDAY...Partly cloudy. Chance of showers and thunderstorms. Highs 85 to 95. Light winds becoming northeast around 10 mph in the morning, then shifting to the west in the afternoon. .THURSDAY...Mostly clear. Highs 85 to 95. Light winds. $$ AZZ117-240115- White Mountains- Including the cities of Show Low, Greer, and Pinetop 1253 AM MST Sun Aug 23 2026 .TODAY... Sky/weather.........Partly cloudy then becoming mostly cloudy. Chance of showers and thunderstorms in the afternoon. Max temperature.....85-93 below 7000 feet...75-85 above 7000 feet. 24 hr trend......Little change. Min humidity........16-21 percent below 7000 feet...21-31 percent above 7000 feet. 24 hr trend......Little change. 20-foot winds.......Light winds becoming west around 10 mph in the afternoon. Free winds..........Southwest 5 to 15 mph. PoP.................40 percent. Chance lightning....10 percent increasing to 40 percent in the afternoon. Mixing height.......4400 ft AGL increasing to 13100 ft AGL in the afternoon. Transport winds.....South 5 to 10 knots. Max Ventilation.....Excellent. .TONIGHT... Sky/weather.........Partly cloudy then becoming mostly cloudy. Slight chance of showers and thunderstorms in the evening. Min temperature.....59-65 below 7000 feet...49-59 above 7000 feet. 24 hr trend......Little change. Max humidity........45-65 percent below 7000 feet...59-79 percent above 7000 feet. 24 hr trend......Little change. 20-foot winds.......Northeast winds around 10 mph in the evening becoming light. Free winds..........Northwest 5 to 15 mph shifting to the east 5 to 10 mph after midnight. PoP.................20 percent. Chance lightning....20 percent decreasing to 0 percent after midnight. .MONDAY... Sky/weather.........Partly cloudy then becoming mostly cloudy. Chance of showers and thunderstorms in the afternoon. Max temperature.....84-93 below 7000 feet...75-85 above 7000 feet. 24 hr trend......Little change. Min humidity........17-22 percent below 7000 feet...21-31 percent above 7000 feet. 24 hr trend......Little change. 20-foot winds.......Light winds becoming northwest around 10 mph in the afternoon. Free winds..........Southeast 5 to 10 mph shifting to the southwest in the afternoon. PoP.................30 percent. Chance lightning....0 percent increasing to 30 percent in the afternoon. Mixing height.......4500 ft AGL increasing to 10800 ft AGL in the afternoon. Transport winds.....East around 5 knots shifting to the south in the afternoon. Max Ventilation.....Very good. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...Partly cloudy. Chance of showers and thunderstorms. Highs 83 to 93. Northeast winds 10 to 15 mph shifting to the west in the afternoon. .WEDNESDAY...Partly cloudy. Chance of showers and thunderstorms. Highs 84 to 94. East winds around 10 mph shifting to the southeast in the morning, then shifting to the west in the afternoon. .THURSDAY...Partly cloudy. Chance of showers and thunderstorms. Highs 84 to 94. Light winds. $$ AZZ118-240115- Northern Gila County- Including the cities of Payson, Strawberry, and Young 1253 AM MST Sun Aug 23 2026 .TODAY... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the afternoon. Max temperature.....94-104 below 5000 feet...88-97 above 5000 feet. 24 hr trend......Little change. Min humidity........15-20 percent. 24 hr trend......Little change. 20-foot winds.......Light winds becoming west around 10 mph in the afternoon. Free winds..........Southwest 5 to 15 mph. PoP.................20 percent. Chance lightning....0 percent increasing to 20 percent in the afternoon. .TONIGHT... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the evening. Min temperature.....65-75 below 5000 feet...59-69 above 5000 feet. 24 hr trend......Little change. Max humidity........41-61 percent below 5000 feet...52-72 percent above 5000 feet. 24 hr trend......Little change. 20-foot winds.......North winds around 10 mph in the evening becoming light. Free winds..........West 5 to 10 mph shifting to the north 5 to 15 mph after midnight. PoP.................20 percent. Chance lightning....20 percent decreasing to 10 percent after midnight. .MONDAY... Sky/weather.........Partly cloudy. Slight chance of showers and thunderstorms in the afternoon. Max temperature.....93-103 below 5000 feet...87-96 above 5000 feet. 24 hr trend......Little change. Min humidity........17-22 percent. 24 hr trend......Little change. 20-foot winds.......Light winds becoming west around 10 mph in the afternoon. Free winds..........Northeast 5 to 10 mph shifting to the south in the afternoon. PoP.................20 percent. Chance lightning....0 percent increasing to 20 percent in the afternoon. .FORECAST DAYS 3 THROUGH 5... .TUESDAY...Mostly clear. Slight chance of showers and thunderstorms. Highs 94 to 104. Northeast winds 10 to 15 mph shifting to the southwest in the afternoon. .WEDNESDAY...Partly cloudy. Slight chance of showers and thunderstorms. Highs 95 to 105. Northeast winds 10 to 15 mph shifting to the west in the afternoon. .THURSDAY...Mostly clear. Highs 95 to 105. Northeast winds around 10 mph early in the morning becoming light, then becoming west around 10 mph in the afternoon. $$ .6 TO 10 DAY OUTLOOK FOR AUG 28 - SEP 01, 2026... Above normal temperatures and below normal precipitation. = $$ VENTILATION...Transport wind and mixing height are based on the following points. ZONE 115...Williams.......6750 FT MSL. ZONE 106...Tusayan........6606 FT MSL. ZONE 108...Prescott.......5052 FT MSL. ZONE 111...Window Rock....6739 FT MSL. ZONE 113...Winslow........4883 FT MSL. ZONE 117...Whiteriver.....5225 FT MSL. Ventilation categories are determined by criteria established by each state. $$