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

46°F

8°C

Humidity 98%
Wind Speed E 0 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 10 Dec 08:52 AM PST
Extended Forecast for

2 Miles ESE Happy Camp CA

  • Today

    Today: Patchy fog before 11am.  Otherwise, sunny, with a high near 64. Calm wind.

    High: 64 °F

    Patchy Fog
    then Sunny

  • Tonight

    Tonight: Patchy dense fog after 1am.  Otherwise, mostly clear, with a low around 40. Calm wind.

    Low: 40 °F

    Mostly Clear
    then Patchy
    Dense Fog

  • Thursday

    Thursday: Patchy fog before 11am.  Otherwise, sunny, with a high near 63. Calm wind.

    High: 63 °F

    Patchy Fog
    then Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 40. Calm wind.

    Low: 40 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 65. Light east wind.

    High: 65 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of rain.  Partly sunny, with a high near 60.

    High: 60 °F

    Slight Chance
    Rain

Detailed Forecast

Today
Patchy fog before 11am. Otherwise, sunny, with a high near 64. Calm wind.
Tonight
Patchy dense fog after 1am. Otherwise, mostly clear, with a low around 40. Calm wind.
Thursday
Patchy fog before 11am. Otherwise, sunny, with a high near 63. Calm wind.
Thursday Night
Mostly clear, with a low around 40. Calm wind.
Friday
Sunny, with a high near 65. Light east wind.
Friday Night
Mostly clear, with a low around 40.
Saturday
Sunny, with a high near 64.
Saturday Night
Partly cloudy, with a low around 40.
Sunday
A slight chance of rain. Partly sunny, with a high near 60.
Sunday Night
A chance of rain, mainly after 10pm. Mostly cloudy, with a low around 43.
Monday
Rain. Mostly cloudy, with a high near 58.
Monday Night
Rain. Mostly cloudy, with a low around 44.
Tuesday
Rain likely. Mostly cloudy, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles ESE Happy Camp CA
 41.79°N 123.32°W (Elev. 1309 ft)
3:41 am PST Dec 10, 2025
9am 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