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.

NA

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
Extended Forecast for

11 Miles WSW Wilderville OR

Wind Advisory December 25, 09:00am until December 25, 01:00pm
Click here for hazard details and duration
Wind Advisory
  • Overnight

    Overnight: Showers.  Snow level 5000 feet. Low around 36. Southeast wind around 13 mph, with gusts as high as 20 mph.  Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Showers

  • Christmas Day

    Christmas Day: Rain and snow showers, becoming all snow after 1pm.  High near 38. Breezy, with a south wind 16 to 22 mph, with gusts as high as 39 mph.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 38 °F

    Breezy.
    Rain/Snow
    then Snow
    Showers

  • Thursday Night

    Thursday Night: Snow showers.  Low around 33. South wind 15 to 17 mph, with gusts as high as 26 mph.  Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    Low: 33 °F

    Snow Showers

  • Friday

    Friday: Snow showers before 10am, then snow after 10am.  High near 36. West southwest wind 14 to 16 mph, with gusts as high as 24 mph.  Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    High: 36 °F

    Snow Showers

  • Friday Night

    Friday Night: Snow, mainly before 10pm.  Low around 32. West wind around 10 mph.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Snow then
    Chance Snow

  • Saturday

    Saturday: A 40 percent chance of snow.  Partly sunny, with a high near 34. New snow accumulation of less than a half inch possible.

    High: 34 °F

    Chance Snow

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Overnight
Showers. Snow level 5000 feet. Low around 36. Southeast wind around 13 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Christmas Day
Rain and snow showers, becoming all snow after 1pm. High near 38. Breezy, with a south wind 16 to 22 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Thursday Night
Snow showers. Low around 33. South wind 15 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Friday
Snow showers before 10am, then snow after 10am. High near 36. West southwest wind 14 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Friday Night
Snow, mainly before 10pm. Low around 32. West wind around 10 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Saturday
A 40 percent chance of snow. Partly sunny, with a high near 34. New snow accumulation of less than a half inch possible.
Saturday Night
Mostly cloudy, with a low around 29.
Sunday
Mostly sunny, with a high near 38.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Mostly sunny, with a high near 42.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
Sunny, with a high near 46.
Tuesday Night
Mostly clear, with a low around 35.
Wednesday
Mostly sunny, with a high near 46.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles WSW Wilderville OR
 42.34°N 123.66°W (Elev. 4183 ft)
3:41 am PST Dec 25, 2025
4am PST Dec 25, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

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