FNUS56 KSGX 180848 FWFSGX Fire Weather Planning Forecast For Extreme Southwestern California National Weather Service San Diego CA 148 AM PDT Mon May 18 2026 .DISCUSSION... Drier with cooling for the deserts today with lowest daytime humidity around 10 percent and with north to northeast winds gusting to 30 to 40 mph for this morning. Meanwhile, high temperatures for the coast to the coastal slopes of the mountains will warm several degrees today, as much as 10 to 15 degrees for the Inland Empire. Warmer for all areas on Tuesday with lowest daytime humidity for inland areas around 10 percent, but with weaker winds. The coast and valleys will cool on Wednesday while the mountains and deserts continue to warm. There will be slight day-to-day differences for Thursday through next weekend with high temperatures a few to around 5 degrees above average. CAZ552-182300- Orange County Coastal Areas- Including the cities of Huntington Beach, Costa Mesa, Newport Beach, Laguna Beach, and San Clemente 148 AM PDT Mon May 18 2026 .TODAY... Sky/weather.........Mostly cloudy...becoming partly cloudy. Max temperature.....68 to 75. 24 HR TREND......Little change. Min humidity........50 to 60 percent. 24 HR TREND......Down 5 percent. WIND (20 FT)........Winds south 6 to 12 mph. Gusts to 20 mph in the afternoon. CWR (>0.10 IN)......1 percent. .TONIGHT... Sky/weather.........Partly cloudy. Patchy fog after midnight. Min temperature.....54 to 59. 24 HR TREND......Down 1 degree. Max humidity........90 percent. 24 HR TREND......Little change. WIND (20 FT)........Winds southwest 6 to 10 mph with gusts to 20 mph becoming southeast around 6 mph after midnight. CWR (>0.10 IN)......0 percent. .TUESDAY... Sky/weather.........Partly cloudy...becoming mostly sunny. Patchy fog in the morning. Max temperature.....69 to 76. 24 HR TREND......Little change. Min humidity........45 to 55 percent. 24 HR TREND......Down 5 percent. WIND (20 FT)........Winds west 6 to 13 mph. Gusts to 25 mph in the afternoon. CWR (>0.10 IN)......0 percent. FORECAST DAYS 3 THROUGH 7... SUSTAINED WINDS LESS THAN 20 MPH EXCEPT WHEN SPECIFIED .TUESDAY NIGHT...Partly cloudy. Patchy fog after midnight. Lows in the upper 50s. South winds around 5 mph. .WEDNESDAY...Partly cloudy. Patchy fog in the morning. Highs in the lower 70s. South winds around 5 mph. .WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 50s. Southeast winds around 5 mph. .THURSDAY...Partly cloudy. Highs in the lower 70s. Light winds. .THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. Light winds. .FRIDAY...Partly cloudy. Highs in the lower 70s. South winds around 5 mph. .FRIDAY NIGHT...Mostly clear. Lows in the upper 50s. .SATURDAY...Partly cloudy. Highs in the lower 70s. .SATURDAY NIGHT...Mostly clear. Lows in the upper 50s. .SUNDAY...Partly cloudy. Highs around 70. $$ CAZ554-182300- Orange County Inland Areas- Including the cities of Santa Ana, Anaheim, Garden Grove, Irvine, Orange, Fullerton, and Mission Viejo 148 AM PDT Mon May 18 2026 .TODAY... Sky/weather.........Partly cloudy. Max temperature.....72 to 78. 24 HR TREND......Up 7 degrees. Min humidity........30 to 40 percent. 24 HR TREND......Down 10 percent. WIND (20 FT)........Winds south 6 to 11 mph. Gusts to 20 mph in the afternoon. CWR (>0.10 IN)......1 percent. .TONIGHT... Sky/weather.........Partly cloudy. Patchy fog after midnight. Min temperature.....51 to 57. 24 HR TREND......Little change. Max humidity........80 to 90 percent. 24 HR TREND......Down 5 percent. WIND (20 FT)........Winds southwest 6 to 10 mph with gusts to 20mph in the evening becoming variable 3 to 6 mph. CWR (>0.10 IN)......0 percent. .TUESDAY... Sky/weather.........Partly cloudy...becoming mostly sunny. Patchy fog in the morning. Max temperature.....76 to 83. 24 HR TREND......Up 3 degrees. Min humidity........30 to 40 percent. 24 HR TREND......Down 15 percent. WIND (20 FT)........Winds west 6 to 10 mph. Gusts to 20 mph in the afternoon. CWR (>0.10 IN)......0 percent. FORECAST DAYS 3 THROUGH 7... SUSTAINED WINDS LESS THAN 20 MPH EXCEPT WHEN SPECIFIED .TUESDAY NIGHT...Partly cloudy. Patchy fog after midnight. Lows in the upper 50s. Light winds. .WEDNESDAY...Partly cloudy. Patchy fog in the morning. Highs in the mid 70s. Light winds. .WEDNESDAY NIGHT...Partly cloudy. Patchy fog after midnight. Lows in the upper 50s. Light winds. .THURSDAY...Partly cloudy. Patchy fog in the morning. Highs in the upper 70s. Light winds. .THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. Light winds. .FRIDAY...Mostly sunny. Highs in the upper 70s. Light winds. .FRIDAY NIGHT...Mostly clear. Lows in the mid 50s. .SATURDAY...Partly cloudy. Highs in the mid 70s. .SATURDAY NIGHT...Mostly clear. Lows in the mid 50s. .SUNDAY...Mostly sunny. Highs in the mid 70s. $$ CAZ243-182300- San Diego County Coastal Areas- 148 AM PDT Mon May 18 2026 .TODAY... Sky/weather.........Cloudy...becoming partly cloudy. Max temperature.....68 to 74. 24 HR TREND......Up 2 degrees. Min humidity........50 to 60 percent. 24 HR TREND......Down 10 percent. WIND (20 FT)........Winds south 6 to 10 mph. Gusts to 20 mph in the afternoon. CWR (>0.10 IN)......3 percent. .TONIGHT... Sky/weather.........Partly cloudy...becoming mostly cloudy. Patchy fog after midnight. Min temperature.....51 to 57. 24 HR TREND......Down 2 degrees. Max humidity........80 to 90 percent. 24 HR TREND......Up 5 percent. WIND (20 FT)........Winds west around 6 mph in the evening becoming variable 2 to 5 mph. CWR (>0.10 IN)......0 percent. .TUESDAY... Sky/weather.........Mostly cloudy...becoming partly cloudy. Patchy fog in the morning. Max temperature.....69 to 77. 24 HR TREND......Up 4 degrees. Min humidity........50 to 60 percent. 24 HR TREND......Up 5 percent. WIND (20 FT)........Winds west 6 to 11 mph. Gusts to 20 mph in the afternoon. CWR (>0.10 IN)......0 percent. FORECAST DAYS 3 THROUGH 7... SUSTAINED WINDS LESS THAN 20 MPH EXCEPT WHEN SPECIFIED .TUESDAY NIGHT...Partly cloudy. Patchy fog after midnight. Lows in the upper 50s. Light winds. .WEDNESDAY...Partly cloudy. Patchy fog in the morning. Highs in the lower 70s. Light winds. .WEDNESDAY NIGHT...Partly cloudy. Lows in the upper 50s. Light winds. .THURSDAY...Partly cloudy. Highs in the lower 70s. Light winds. .THURSDAY NIGHT...Mostly clear. Lows in the upper 50s. Light winds. .FRIDAY...Partly cloudy. Highs in the lower 70s. Light winds. .FRIDAY NIGHT...Mostly clear. Lows in the upper 50s. .SATURDAY...Partly cloudy. Highs in the lower 70s. .SATURDAY NIGHT...Mostly clear. Lows in the upper 50s. .SUNDAY...Partly cloudy. Highs in the lower 70s. $$ CAZ250-182300- San Diego County Inland Valleys- 148 AM PDT Mon May 18 2026 .TODAY... Sky/weather.........Partly cloudy. Max temperature.....74 to 79. 24 HR TREND......Up 5 degrees. Min humidity........30 to 40 percent. 24 HR TREND......Down 10 percent. WIND (20 FT)........Winds south around 6 mph becoming west with gusts to 20 mph in the afternoon. CWR (>0.10 IN)......3 percent. .TONIGHT... Sky/weather.........Partly cloudy. Patchy fog after midnight. Min temperature.....49 to 54. 24 HR TREND......Down 2 degrees. Max humidity........85 to 95 percent. 24 HR TREND......Down 5 percent. WIND (20 FT)........Winds west 6 to 8 mph becoming north around 6 mph after midnight. CWR (>0.10 IN)......0 percent. .TUESDAY... Sky/weather.........Mostly sunny. Patchy fog in the morning. Max temperature.....75 to 80 in the western valleys to 79 to 84 near the foothills. 24 HR TREND......Up 7 degrees. Min humidity........15 to 25 percent. 24 HR TREND......Down 15 percent. WIND (20 FT)........Winds west 6 to 12 mph. Gusts to 20 mph in the afternoon. CWR (>0.10 IN)......0 percent. FORECAST DAYS 3 THROUGH 7... SUSTAINED WINDS LESS THAN 20 MPH EXCEPT WHEN SPECIFIED .TUESDAY NIGHT...Partly cloudy. Patchy fog after midnight. Lows in the mid 50s. Light winds. .WEDNESDAY...Mostly sunny. Patchy fog in the morning. Highs in the mid 70s. West winds around 5 mph. .WEDNESDAY NIGHT...Partly cloudy. Patchy fog after midnight. Lows in the mid 50s. Light winds. .THURSDAY...Partly cloudy. Patchy fog in the morning. Highs in the upper 70s. Light winds. .THURSDAY NIGHT...Mostly clear. Lows in the mid 50s. Light winds. .FRIDAY...Mostly sunny. Highs in the upper 70s. Light winds. .FRIDAY NIGHT...Mostly clear. Lows in the mid 50s. .SATURDAY...Mostly sunny. Highs in the upper 70s. .SATURDAY NIGHT...Mostly clear. Lows in the mid 50s. .SUNDAY...Mostly sunny. Highs in the upper 70s. $$ CAZ248-182300- San Bernardino and Riverside County Valleys - The Inland Empire- 148 AM PDT Mon May 18 2026 .TODAY... Sky/weather.........Partly cloudy...becoming mostly sunny. Max temperature.....74 to 82. 24 HR TREND......Up 12 degrees. Min humidity........10 to 15 percent. 24 HR TREND......Down 40 percent. WIND (20 FT)........Winds north 10 to 20 mph with gusts to 30 mph. CWR (>0.10 IN)......1 percent. .TONIGHT... Sky/weather.........Partly cloudy. Patchy fog after midnight. Min temperature.....48 to 55. 24 HR TREND......Little change. Max humidity........70 to 80 percent. 24 HR TREND......Down 20 percent. WIND (20 FT)........Winds west 6 to 13 mph with gusts to 25 mph becoming north 6 to 8 mph after midnight. CWR (>0.10 IN)......0 percent. .TUESDAY... Sky/weather.........Mostly sunny. Max temperature.....81 to 88. 24 HR TREND......Up 7 degrees. Min humidity........10 to 15 percent. 24 HR TREND......Down 10 percent. WIND (20 FT)........Winds north 6 to 13 mph becoming west 6 to 14 mph in the afternoon. Gusts to 20 mph...becoming 25 mph in the afternoon. CWR (>0.10 IN)......0 percent. FORECAST DAYS 3 THROUGH 7... SUSTAINED WINDS LESS THAN 20 MPH EXCEPT WHEN SPECIFIED .TUESDAY NIGHT...Mostly clear. Patchy fog after midnight. Lows in the mid 50s. Light winds. .WEDNESDAY...Mostly sunny. Patchy fog in the morning. Highs in the mid 80s. West winds around 6 mph. .WEDNESDAY NIGHT...Mostly clear. Patchy fog after midnight. Lows in the mid 50s. Light winds. .THURSDAY...Mostly sunny. Patchy fog in the morning. Highs in the mid 80s. Light winds. .THURSDAY NIGHT...Clear. Lows in the mid 50s. Light winds. .FRIDAY...Mostly sunny. Highs in the mid 80s. Light winds. .FRIDAY NIGHT...Mostly clear. Lows in the mid 50s. .SATURDAY...Mostly sunny. Highs in the lower 80s. .SATURDAY NIGHT...Clear. Lows in the mid 50s. .SUNDAY...Mostly sunny. Highs in the lower 80s. $$ CAZ255-256-182300- San Bernardino County Mountains- Including The Mountain Top And Front Country Ranger Districts Of The San Bernardino National Forest-Riverside County Mountains- Including The San Jacinto Ranger District Of The San Bernardino National Forest- 148 AM PDT Mon May 18 2026 .TODAY... Sky/weather.........Mostly sunny. Max temperature.....50 to 60 above 6000 feet to 60 to 70 below 6000 feet. 24 HR TREND......Up 5 degrees. Min humidity........10 to 15 percent on desert slopes to 15 to 20 percent on coastal slopes. 24 HR TREND......Down 15 percent. WIND (20 FT)........ SLOPES...........Winds north 12 to 22 mph with gusts to 35 mph. RIDGETOP.........Winds north 12 to 22 mph. Gusts to 35 mph...becoming 25 mph in the afternoon. CWR (>0.10 IN)......0 percent. .TONIGHT... Sky/weather.........Mostly clear. Min temperature.....30 to 40 above 6000 feet to 39 to 49 below 6000 feet. 24 HR TREND......Up 2 degrees. Max humidity........15 to 20 percent on desert slopes to 45 to 55 percent on coastal slopes. 24 HR TREND......Down 80 percent. WIND (20 FT)........ SLOPES...........Winds northeast 6 to 11 mph. Gusts to 20 mph after midnight. RIDGETOP.........Winds northeast 6 to 11 mph. CWR (>0.10 IN)......0 percent. .TUESDAY... Sky/weather.........Mostly sunny. Max temperature.....57 to 67 above 6000 feet to 67 to 77 below 6000 feet. 24 HR TREND......Up 6 degrees. Min humidity........10 percent. 24 HR TREND......Down 5 percent. WIND (20 FT)........ SLOPES...........Winds northeast 6 to 14 mph with gusts to 25 mph. RIDGETOP.........Winds northeast 6 to 14 mph with gusts to 25 mph. CWR (>0.10 IN)......0 percent. FORECAST DAYS 3 THROUGH 7... SUSTAINED WINDS LESS THAN 20 MPH EXCEPT WHEN SPECIFIED .TUESDAY NIGHT...Warmer, clear. Lows around 50. North winds around 5 mph. .WEDNESDAY...Sunny. Highs in the lower 70s. North winds around 7 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the lower 50s. Light winds. .THURSDAY...Mostly sunny. Highs in the mid 70s. Light winds. .THURSDAY NIGHT...Clear. Lows in the lower 50s. Light winds. .FRIDAY...Sunny. Highs in the mid 70s. Light winds. .FRIDAY NIGHT...Clear. Lows in the lower 50s. .SATURDAY...Sunny. Highs in the mid 70s. .SATURDAY NIGHT...Clear. Lows in the lower 50s. .SUNDAY...Sunny. Highs in the mid 70s. $$ CAZ258-182300- San Diego County Mountains- Including the Palomar and Descanso Ranger Districts of the Cleveland National Forest- 148 AM PDT Mon May 18 2026 .TODAY... Sky/weather.........Mostly sunny. Max temperature.....62 to 72. 24 HR TREND......Up 9 degrees. Min humidity........15 to 20 percent on desert slopes to 20 to 30 percent on coastal slopes. 24 HR TREND......Down 45 percent. WIND (20 FT)........ SLOPES...........Winds east 6 to 12 mph becoming west 6 to 11 mph in the afternoon. Gusts to 25 mph...becoming 20 mph in the afternoon. RIDGETOP.........Winds east 6 to 11 mph with gusts to 20 mph. CWR (>0.10 IN)......1 percent. .TONIGHT... Sky/weather.........Mostly clear. Min temperature.....43 to 51. 24 HR TREND......Up 4 degrees. Max humidity........40 to 50 percent on desert slopes to 65 to 75 percent on coastal slopes. 24 HR TREND......Down 25 percent. WIND (20 FT)........ SLOPES...........Winds west 6 to 9 mph becoming northeast 6 to 13 mph with gusts to 25 mph after midnight. RIDGETOP.........Winds east 6 to 12 mph. Gusts to 20 mph after midnight. CWR (>0.10 IN)......0 percent. .TUESDAY... Sky/weather.........Mostly sunny. Max temperature.....70 to 80. 24 HR TREND......Up 7 degrees. Min humidity........10 to 15 percent. 24 HR TREND......Down 5 percent. WIND (20 FT)........ SLOPES...........Winds east 7 to 17 mph with gusts to 30 mph. RIDGETOP.........Winds east 7 to 17 mph with gusts to 30 mph. CWR (>0.10 IN)......0 percent. FORECAST DAYS 3 THROUGH 7... SUSTAINED WINDS LESS THAN 20 MPH EXCEPT WHEN SPECIFIED .TUESDAY NIGHT...Mostly clear. Lows in the lower 50s. Light winds. .WEDNESDAY...Sunny. Highs in the mid 70s. Northeast winds around 6 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 50s. Light winds. .THURSDAY...Mostly sunny. Highs in the upper 70s. Light winds. .THURSDAY NIGHT...Clear. Lows in the mid 50s. Light winds. .FRIDAY...Sunny. Highs in the upper 70s. Light winds. .FRIDAY NIGHT...Mostly clear. Lows in the mid 50s. .SATURDAY...Sunny. Highs in the upper 70s. .SATURDAY NIGHT...Clear. Lows in the lower 50s. .SUNDAY...Sunny. Highs in the upper 70s. $$ CAZ257-182300- Santa Ana Mountains- Including The Trabuco Ranger District of the Cleveland National Forest- 148 AM PDT Mon May 18 2026 .TODAY... Sky/weather.........Partly cloudy...becoming mostly sunny. Max temperature.....67 to 77. 24 HR TREND......Up 12 degrees. Min humidity........20 to 30 percent. 24 HR TREND......Down 40 percent. WIND (20 FT)........ SLOPES...........Winds north 7 to 17 mph becoming west 6 to 15 mph in the afternoon. Gusts to 25 mph. RIDGETOP.........Winds north 7 to 17 mph with gusts to 30 mph. CWR (>0.10 IN)......1 percent. .TONIGHT... Sky/weather.........Partly cloudy. Min temperature.....45 to 54. 24 HR TREND......Down 2 degrees. Max humidity........70 to 80 percent. 24 HR TREND......Down 35 percent. WIND (20 FT)........ SLOPES...........Winds west 6 to 13 mph with gusts to 25 mph becoming north 6 to 9 mph after midnight. RIDGETOP.........Winds west 6 to 11 mph becoming north 6 to 9 mph after midnight. Gusts to 20 mph. CWR (>0.10 IN)......0 percent. .TUESDAY... Sky/weather.........Mostly sunny. Max temperature.....73 to 83. 24 HR TREND......Up 6 degrees. Min humidity........20 to 25 percent. 24 HR TREND......Down 20 percent. WIND (20 FT)........ SLOPES...........Winds north 6 to 10 mph becoming west 6 to 13 mph with gusts to 25 mph in the afternoon. RIDGETOP.........Winds northeast 6 to 10 mph becoming west 6 to 12 mph in the afternoon. Gusts to 25 mph. CWR (>0.10 IN)......0 percent. FORECAST DAYS 3 THROUGH 7... SUSTAINED WINDS LESS THAN 20 MPH EXCEPT WHEN SPECIFIED .TUESDAY NIGHT...Mostly clear. Patchy fog after midnight. Lows in the mid 50s. Light winds. .WEDNESDAY...Mostly sunny. Highs in the mid 70s. West winds around 6 mph. .WEDNESDAY NIGHT...Mostly clear. Patchy fog after midnight. Lows in the mid 50s. Light winds. .THURSDAY...Mostly sunny. Patchy fog in the morning. Highs in the mid 70s. Southwest winds around 6 mph. .THURSDAY NIGHT...Clear. Lows in the mid 50s. Light winds. .FRIDAY...Mostly sunny. Highs in the mid 70s. Southwest winds around 6 mph. .FRIDAY NIGHT...Mostly clear. Lows in the mid 50s. .SATURDAY...Mostly sunny. Highs in the mid 70s. .SATURDAY NIGHT...Clear. Lows in the mid 50s. .SUNDAY...Mostly sunny. Highs in the mid 70s. $$ CAZ260-182300- Victor Valley - Apple Valley - Lucerne Valley - Johnson Valley- 148 AM PDT Mon May 18 2026 .TODAY... Sky/weather.........Mostly sunny. Max temperature.....70 to 77. 24 HR TREND......Down 1 degree. Min humidity........5 to 10 percent. 24 HR TREND......Down 10 percent. WIND (20 FT)........Winds northeast 6 to 14 mph with gusts to 25 mph. CWR (>0.10 IN)......0 percent. .TONIGHT... Sky/weather.........Clear. Min temperature.....44 to 53. 24 HR TREND......Up 3 degrees. Max humidity........20 to 30 percent. 24 HR TREND......Down 25 percent. WIND (20 FT)........Winds north around 6 mph becoming west around 6 mph after midnight. CWR (>0.10 IN)......0 percent. .TUESDAY... Sky/weather.........Sunny. Max temperature.....78 to 83. 24 HR TREND......Up 7 degrees. Min humidity........5 to 10 percent. 24 HR TREND......Down 5 percent. WIND (20 FT)........Winds northeast 6 to 11 mph with gusts to 20 mph. CWR (>0.10 IN)......0 percent. FORECAST DAYS 3 THROUGH 7... SUSTAINED WINDS LESS THAN 20 MPH EXCEPT WHEN SPECIFIED .TUESDAY NIGHT...Clear. Lows in the lower 50s. Light winds. .WEDNESDAY...Sunny. Highs in the mid 80s. North winds around 5 mph. .WEDNESDAY NIGHT...Mostly clear. Lows in the mid 50s. Southwest winds around 5 mph. .THURSDAY...Sunny. Highs in the upper 80s. Light winds. .THURSDAY NIGHT...Clear. Lows in the upper 50s. Southwest winds around 6 mph. .FRIDAY...Sunny. Highs around 90. Light winds. .FRIDAY NIGHT...Clear. Lows in the upper 50s. .SATURDAY...Sunny. Highs around 90. .SATURDAY NIGHT...Clear. Lows in the upper 50s. .SUNDAY...Sunny. Highs around 90. $$ CAZ261-262-265-182300- Coachella Valley- Including The Palm Springs South Coast Desert District- San Diego County Deserts- Including The Anza Borrego Desert State Park- San Gorgonio Pass near Banning- 148 AM PDT Mon May 18 2026 .TODAY... Sky/weather.........Mostly sunny. Max temperature.....86 to 91. 24 HR TREND......Up 1 degree. Min humidity........5 to 10 percent. 24 HR TREND......Down 15 percent. WIND (20 FT)........Winds north 10 to 20 mph with gusts to 30 mph. CWR (>0.10 IN)......0 percent. .TONIGHT... Sky/weather.........Mostly clear. Min temperature.....58 to 67. 24 HR TREND......Up 1 degree. Max humidity........20 to 30 percent. 24 HR TREND......Down 30 percent. WIND (20 FT)........Winds west 6 to 8 mph. CWR (>0.10 IN)......0 percent. .TUESDAY... Sky/weather.........Sunny. Max temperature.....91 to 96. 24 HR TREND......Up 6 degrees. Min humidity........5 to 10 percent. 24 HR TREND......Little change. WIND (20 FT)........Winds east 6 to 10 mph with gusts to 20 mph. CWR (>0.10 IN)......0 percent. FORECAST DAYS 3 THROUGH 7... SUSTAINED WINDS LESS THAN 20 MPH EXCEPT WHEN SPECIFIED .TUESDAY NIGHT...Clear. Lows in the upper 60s. Light winds. .WEDNESDAY...Sunny. Highs in the mid 90s. Light winds. .WEDNESDAY NIGHT...Clear. Lows in the upper 60s. West winds around 5 mph. .THURSDAY...Sunny. Highs in the upper 90s. Light winds. .THURSDAY NIGHT...Clear. Lows around 70. Light winds. .FRIDAY...Sunny. Highs in the upper 90s. Light winds. .FRIDAY NIGHT...Clear. Lows in the upper 60s. .SATURDAY...Sunny. Highs in the upper 90s. .SATURDAY NIGHT...Clear. Lows in the upper 60s. .SUNDAY...Sunny. Highs in the upper 90s. $$ 17