Atmospheric River Bringing Heavy Rain to Southern California and Heavy Snow to the Sierra Nevadas

A strong atmospheric river will continue heavy rain over southern California through Friday. The heaviest rainfall is ongoing today in the Los Angeles Basin. Flash and urban flooding is possible. A prolonged heavy snowfall has begun over the Sierra Nevada Mountains and will continue through Friday. Travel will become increasingly difficult over the passes due to snow and strong winds. Read More >

Hazardous Weather Conditions

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10375°NLon: 123.68508°WElev: 1389.0ft.

41°F

5°C

Humidity	99%
Wind Speed	SW 1 MPH
Barometer	NA
Dewpoint	41°F (5°C)
Visibility	NA
Last update	25 Dec 03:52 AM PST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

9 Miles ENE Happy Camp CA

Wind Advisory until December 25, 01:00pm

Winter Storm Warning December 25, 04:30am until December 26, 10:00am

Click here for hazard details and duration

Wind Advisory

Winter Storm Warning

Wind Advisory until December 25, 01:00pm
Winter Storm Warning December 25, 04:30am until December 26, 10:00am
NOW: Multiple hazards in effect
Click HERE for Details
Overnight
Low: 39 °F
Showers
Christmas Day
High: 48 °F
Showers
Thursday Night
Low: 35 °F
Showers
Friday
High: 46 °F
Showers
Friday Night
Low: 32 °F
Rain then
Chance Rain
Saturday
High: 45 °F
Chance Rain
Saturday Night
Low: 27 °F
Mostly Cloudy
Sunday
High: 48 °F
Mostly Sunny

Detailed Forecast

Overnight

Showers. Low around 39. East wind around 6 mph. Chance of precipitation is 100%. New precipitation amounts of less than a tenth of an inch possible.

Christmas Day

Showers, mainly before 4pm. Snow level 4200 feet. High near 48. East wind 5 to 7 mph becoming southwest in the afternoon. Winds could gust as high as 22 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Night

Showers. Snow level 3800 feet. Low around 35. Southeast wind around 5 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday

Showers before 10am, then rain after 10am. Snow level 3800 feet. High near 46. Southeast wind 5 to 9 mph becoming southwest in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

Friday Night

Rain, mainly before 10pm. Snow level 3500 feet lowering to 2600 feet after midnight . Low around 32. West southwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%.

Saturday

A 30 percent chance of rain. Snow level 2700 feet. Partly sunny, with a high near 45.

Saturday Night

Mostly cloudy, with a low around 27.

Sunday

Mostly sunny, with a high near 48.

Sunday Night

Partly cloudy, with a low around 29.

Monday

Sunny, with a high near 52.

Monday Night

Mostly clear, with a low around 33.