US WX Alerts

SoCal  FIRE WEATHER OUTLOOK

Fire Weather Planning Forecast For Southwestern California NWS San Diego CA

DISCUSSION…
Stronger onshore flow will bring a few degrees of cooling today with southwest to west winds for the mountains and deserts gusting to 35 to 45 mph. The flow will turn offshore on Friday with warming for the coast and valleys and continued cooling for the deserts. Lowest daytime humidity for inland areas on Friday will fall to around 10 percent with northeast winds along and below the coastal slopes of the mountains gusting to 35 to 45 mph. Warmer with weaker winds and a gradual recovery in  humidity for next weekend with high temperatures warming to around 5 to 10 degrees
above average on Sunday. Some time during the early to middle part of next week, a low pressure system will move into California bringing cooler and breezy weather with a less than 15 percent chance of wetting precipitation.

Fire Weather Forecast for the San Bernardino County Mountains- Thu Apr 16 2026

.TODAY…Sky/weather………Mostly cloudy.
Max temperature…..52 to 62 above 6000 feet to 57 to 67 below 6000 feet. 24 HR TREND……Little change.
Min humidity……..15 to 20 percent on desert slopes to 20 to 30 percent on coastal slopes. 24 HR TREND……Down 5 percent.
WIND (20 FT)……..SLOPES………..Winds west 7 to 17 mph. Gusts to 30 mph.
RIDGETOP………Winds west 7 to 17 mph with gusts to 25 mph. CWR (>0.10 IN)……0 percent.

.TONIGHT…Sky/weather………Mostly clear.
Min temperature…..25 to 35 above 6000 feet to 33 to 43 below 6000 feet. 24 HR TREND……Down 4 degrees.
Max humidity……..35 to 45 percent on desert slopes to 70 to 80 percent on coastal slopes. 24 HR TREND……Up 10 percent.
WIND (20 FT)……..SLOPES………..Winds northwest 14 to 24 mph with gusts to 35 mph.
RIDGETOP………Winds northwest 14 to 24 mph with gusts to 30 mph. CWR (>0.10 IN)……0 percent.

.FRIDAY…Sky/weather………Sunny.
Max temperature…..48 to 58 above 6000 feet to 57 to 67 below 6000 feet. 24 HR TREND……Down 1 degree.
Min humidity……..5 to 10 percent on desert slopes to 10 to 15 percent on coastal slopes. 24 HR TREND……Down 10 percent.
WIND (20 FT)……..SLOPES………..Winds north 13 to 23 mph. Gusts to 40 mph…becoming 30 mph in the afternoon.
RIDGETOP………Winds north 13 to 23 mph. Gusts to 35 mph. CWR (>0.10 IN)……0 percent.

FORECAST DAYS 3 THROUGH 7…SUSTAINED WINDS LESS THAN 20 MPH EXCEPT WHEN SPECIFIED

.FRIDAY NIGHT…Clear. Lows in the lower 40s. Light winds.
.SATURDAY…Mostly sunny. Highs in the mid 60s. East winds around 6 mph.
.SATURDAY NIGHT…Partly cloudy. Lows in the upper 40s. Light winds.
.SUNDAY…Partly cloudy. Highs in the upper 60s. South winds around 6 mph.
.SUNDAY NIGHT…Mostly clear. Lows in the mid 40s. West winds around 6 mph.
.MONDAY…Sunny. Highs in the mid 60s. Southwest winds around 8 mph.
.MONDAY NIGHT…Mostly clear. Lows in the lower 40s.
.TUESDAY…Mostly sunny. Highs in the upper 50s.
.TUESDAY NIGHT…Mostly clear. Lows around 40.
.WEDNESDAY…Partly cloudy. Highs in the upper 50s.