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.

35°F

2°C

Humidity	98%
Wind Speed	NNW 1 MPH
Barometer	NA
Dewpoint	34°F (1°C)
Visibility	NA
Last update	26 Dec 12:52 AM PST

More Information:

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

Extended Forecast for

8 Miles WNW Illinois Valley OR

Overnight
Low: 33 °F
Rain/Snow
Friday
High: 37 °F
Rain/Snow
then
Rain/Snow
Likely
Friday Night
Low: 29 °F
Chance
Rain/Snow
then Slight
Chance Snow
Saturday
High: 36 °F
Chance Snow
Saturday Night
Low: 28 °F
Mostly Cloudy
Sunday
High: 41 °F
Mostly Sunny
Sunday Night
Low: 31 °F
Partly Cloudy
Monday
High: 47 °F
Mostly Sunny
Monday Night
Low: 33 °F
Partly Cloudy

Detailed Forecast

Overnight

Snow, possibly mixed with rain. Snow level 3800 feet. Low around 33. South southwest wind around 13 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. Total nighttime snow accumulation of less than one inch possible.

Friday

Rain and snow. Snow level 3800 feet. High near 37. Southeast wind 7 to 10 mph becoming west in the afternoon. Chance of precipitation is 100%. New snow accumulation of around an inch possible.

Friday Night

A chance of rain and snow before midnight, then a slight chance of snow after 3am. Mostly cloudy, with a low around 29. Northwest wind 7 to 9 mph. Chance of precipitation is 40%. 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 5 to 7 mph. New snow accumulation of less than a half inch possible.

Saturday Night

Mostly cloudy, with a low around 28. East northeast wind around 9 mph.

Sunday

Mostly sunny, with a high near 41.

Sunday Night

Partly cloudy, with a low around 31.

Monday

Mostly sunny, with a high near 47.

Monday Night

Partly cloudy, with a low around 33.

Tuesday

Mostly sunny, with a high near 50.