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

44°F

7°C

Humidity 98%
Wind Speed NNW 0 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 10 Dec 06:52 AM PST
Extended Forecast for

13 Miles NNE Happy Camp CA

  • Today

    Today: Mostly sunny, with a high near 52. Southwest wind 3 to 6 mph.

    High: 52 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 40. West southwest wind around 6 mph.

    Low: 40 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 52. South wind around 5 mph becoming calm  in the afternoon.

    High: 52 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 40. South southeast wind 3 to 6 mph.

    Low: 40 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 54. South southeast wind 5 to 7 mph becoming light and variable  in the afternoon.

    High: 54 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of rain.  Snow level 7000 feet. Partly sunny, with a high near 47.

    High: 47 °F

    Slight Chance
    Rain

Detailed Forecast

Today
Mostly sunny, with a high near 52. Southwest wind 3 to 6 mph.
Tonight
Mostly clear, with a low around 40. West southwest wind around 6 mph.
Thursday
Sunny, with a high near 52. South wind around 5 mph becoming calm in the afternoon.
Thursday Night
Mostly clear, with a low around 40. South southeast wind 3 to 6 mph.
Friday
Sunny, with a high near 54. South southeast wind 5 to 7 mph becoming light and variable in the afternoon.
Friday Night
Mostly clear, with a low around 41.
Saturday
Sunny, with a high near 52.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
A slight chance of rain. Snow level 7000 feet. Partly sunny, with a high near 47.
Sunday Night
A chance of rain, mainly after 10pm. Snow level 7600 feet. Mostly cloudy, with a low around 40.
Monday
Rain. Mostly cloudy, with a high near 44.
Monday Night
Rain. Snow level 8200 feet lowering to 7300 feet after midnight . Mostly cloudy, with a low around 41.
Tuesday
Rain likely. Snow level 6600 feet. Mostly cloudy, with a high near 43.
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles NNE Happy Camp CA
 41.98°N 123.29°W (Elev. 5000 ft)
3:41 am PST Dec 10, 2025
7am PST Dec 10, 2025-6pm PST Dec 16, 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