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 >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

50°F

10°C

Humidity	84%
Wind Speed	ESE 4 MPH
Barometer	NA
Dewpoint	45°F (7°C)
Visibility	NA
Wind Chill	49°F (9°C)
Last update	24 Dec 10:52 AM PST

More Information:

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

Extended Forecast for

16 Miles SE Agness OR

Today
High: 46 °F
Chance Rain
Tonight
Low: 40 °F
Rain
Christmas Day
High: 43 °F
Rain
Thursday Night
Low: 38 °F
Rain then
Rain/Snow
Friday
High: 41 °F
Rain/Snow
then Rain
Friday Night
Low: 35 °F
Chance
Rain/Snow
then Slight
Chance
Rain/Snow
Saturday
High: 42 °F
Mostly Sunny
Saturday Night
Low: 32 °F
Partly Cloudy
Sunday
High: 46 °F
Mostly Sunny

Detailed Forecast

Today

A chance of rain before 1pm, then a chance of rain after 5pm. Snow level 4200 feet. Partly sunny, with a high near 46. South wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

Tonight

Rain. Snow level 4800 feet rising to 5300 feet after midnight. Low around 40. East wind 9 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Christmas Day

Rain. Snow level 4000 feet. High near 43. South wind 16 to 21 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

Thursday Night

Rain before 4am, then rain, possibly mixed with snow. Snow level 3800 feet. Low around 38. South wind 10 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Friday

Rain, possibly mixed with snow, becoming all rain after 7am. Snow level 3700 feet. High near 41. Southeast wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.

Friday Night

A chance of rain before 10pm, then a slight chance of rain and snow. Snow level 3200 feet. Mostly cloudy, with a low around 35. Chance of precipitation is 50%. Little or no snow accumulation expected.

Saturday

Mostly sunny, with a high near 42.

Saturday Night

Partly cloudy, with a low around 32.

Sunday

Mostly sunny, with a high near 46.

Sunday Night

Partly cloudy, with a low around 35.

Monday

Sunny, with a high near 50.

Monday Night

Mostly clear, with a low around 37.