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

42°F

6°C

Humidity 95%
Wind Speed SSE 2 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Last update 25 Dec 08:52 AM PST
Extended Forecast for

14 Miles NW Cave Junction 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 and
    Breezy

  • Tonight

    Tonight: Rain and snow showers.  Snow level 3800 feet. Low around 35. South wind 15 to 20 mph, with gusts as high as 26 mph.  Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 35 °F

    Rain/Snow

  • Friday

    Friday: Rain and snow.  Snow level 3700 feet. High near 37. West southwest wind around 16 mph, with gusts as high as 25 mph.  Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Rain/Snow

  • Friday Night

    Friday Night: Rain and snow, becoming all snow after 7pm.  Low around 33. West wind 7 to 9 mph.  Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 33 °F

    Rain/Snow
    then Snow
    Likely

  • Saturday

    Saturday: A 50 percent chance of snow.  Partly sunny, with a high near 36. North northeast wind 6 to 8 mph.  New snow accumulation of less than a half inch possible.

    High: 36 °F

    Chance Snow

  • Saturday Night

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

    Low: 29 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 31.

    Low: 31 °F

    Partly Cloudy

Detailed Forecast

Christmas Day
Rain and snow showers, mainly before 4pm. Snow level 4000 feet. High near 39. Breezy, with a south wind 20 to 24 mph, with gusts as high as 43 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Tonight
Rain and snow showers. Snow level 3800 feet. Low around 35. South wind 15 to 20 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Friday
Rain and snow. Snow level 3700 feet. High near 37. West southwest wind around 16 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 33. West wind 7 to 9 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 6 to 8 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 41.
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 35.
Tuesday
Sunny, with a high near 50.
Tuesday Night
Mostly clear, with a low around 38.
Wednesday
Mostly sunny, with a high near 49.
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ABOUT THIS FORECAST

 
Point Forecast:
14 Miles NW Cave Junction OR
 42.29°N 123.86°W (Elev. 3255 ft)
6:52 am PST Dec 25, 2025
9am PST Dec 25, 2025-6pm PST Dec 31, 2025
 
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Additional Resources

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