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

Wind Advisory in effect from December 25, 09:00 AM PST until December 25, 01:00 PM PST

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

44°F

7°C

Humidity	86%
Wind Speed	SSW 5 MPH
Barometer	NA
Dewpoint	40°F (4°C)
Visibility	NA
Wind Chill	41°F (5°C)
Last update	25 Dec 09:52 AM PST

More Information:

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

Extended Forecast for

9 Miles WNW Illinois Valley OR

Wind Advisory until December 25, 01:00pm

Click here for hazard details and duration

Wind Advisory

Wind Advisory until December 25, 01:00pm
NOW until 1:00pm Thu
Wind Advisory
Christmas Day
High: 39 °F
Rain/Snow
Tonight
Low: 34 °F
Rain/Snow
Friday
High: 37 °F
Rain/Snow
Friday Night
Low: 31 °F
Rain/Snow
then Snow
Likely
Saturday
High: 36 °F
Chance Snow
Saturday Night
Low: 29 °F
Mostly Cloudy
Sunday
High: 40 °F
Partly Sunny
Sunday Night
Low: 31 °F
Partly Cloudy

Detailed Forecast

Christmas Day

Snow showers, possibly mixed with rain. Some thunder is also possible. Snow level 4000 feet. High near 39. South wind around 21 mph, with gusts as high as 39 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Tonight

Snow showers, possibly mixed with rain. Snow level 3800 feet. Low around 34. South wind 13 to 18 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

Friday

Rain and snow. Snow level 3800 feet. High near 37. West southwest wind 13 to 17 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

Friday Night

Rain and snow, becoming all snow after 7pm. Low around 31. West wind around 6 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

Saturday

A 50 percent chance of snow. Partly sunny, with a high near 36. North northeast wind around 6 mph. New snow accumulation of less than a half inch possible.

Saturday Night

Mostly cloudy, with a low around 29.

Sunday

Partly sunny, with a high near 40.

Sunday Night

Partly cloudy, with a low around 31.

Monday

Mostly sunny, with a high near 46.

Monday Night

Partly cloudy, with a low around 34.

Tuesday

Sunny, with a high near 50.