Tracking Atmospheric River in the Northwest U.S. and Clipper with Winter Weather in the Northeast U.S.

A prolonged atmospheric river will continue to bring gusty winds, heavy rainfall which may lead to urban and river flooding with possible landslides, and heavy inter-mountain snow over the Pacific Northwest into the northern Rockies through Thursday. A clipper will cross the Great Lakes and Northeast U.S. into Thursday with areas of moderate to heavy snow and mixed wintry precipitation. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

48°F

9°C

Humidity 98%
Wind Speed SW 1 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Last update 10 Dec 06:52 PM PST
Extended Forecast for

17 Miles WNW Illinois Valley OR

  • Tonight

    Tonight: Partly cloudy, with a steady temperature around 46. West southwest wind around 6 mph becoming northwest after midnight.

    Low: 46 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 54. East wind 5 to 10 mph becoming light northeast.

    High: 54 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46. East wind around 15 mph.

    Low: 46 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 57. East northeast wind 7 to 14 mph.

    High: 57 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 45. Northeast wind 14 to 16 mph.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after 10pm.  Snow level 6900 feet. Partly cloudy, with a low around 43.

    Low: 43 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: A chance of rain.  Snow level 7100 feet. Mostly cloudy, with a high near 48.

    High: 48 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly after 4am.  Mostly cloudy, with a low around 46.

    Low: 46 °F

    Rain Likely

Detailed Forecast

Tonight
Partly cloudy, with a steady temperature around 46. West southwest wind around 6 mph becoming northwest after midnight.
Thursday
Sunny, with a high near 54. East wind 5 to 10 mph becoming light northeast.
Thursday Night
Mostly clear, with a low around 46. East wind around 15 mph.
Friday
Sunny, with a high near 57. East northeast wind 7 to 14 mph.
Friday Night
Mostly clear, with a low around 45. Northeast wind 14 to 16 mph.
Saturday
Sunny, with a high near 54.
Saturday Night
A 20 percent chance of rain after 10pm. Snow level 6900 feet. Partly cloudy, with a low around 43.
Sunday
A chance of rain. Snow level 7100 feet. Mostly cloudy, with a high near 48.
Sunday Night
Rain likely, mainly after 4am. Mostly cloudy, with a low around 46.
Monday
Rain. Cloudy, with a high near 50.
Monday Night
Rain. Cloudy, with a low around 45. Breezy.
Tuesday
Rain. Snow level 6500 feet. Mostly cloudy, with a high near 46.
Tuesday Night
Rain likely. Snow level 6100 feet. Mostly cloudy, with a low around 42.
Wednesday
Rain. Snow level 6400 feet. Mostly cloudy, with a high near 45.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles WNW Illinois Valley OR
 42.18°N 123.98°W (Elev. 4344 ft)
3:40 pm PST Dec 10, 2025
7pm PST Dec 10, 2025-6pm PST Dec 17, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database