National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Lake-Effect Snow through Friday; Strong Winds in the Northern and Central Plains

A clipper-like system will drop down from Canada on Thursday, bringing wintry weather from the Upper Midwest to the Great Lakes through Friday. This system is expected to bring strong northerly winds to much of the northern and central High Plains Thursday afternoon through Friday, with gusts up to 60 mph expected. Read More >

Hazardous Weather Conditions

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

31°F

-1°C

Humidity 99%
Wind Speed SSW 1 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 14 Jan 10:52 PM PST
Extended Forecast for

3 Miles NNW Happy Camp CA

Freezing Fog Advisory until January 15, 12:00pm
Click here for hazard details and duration
Freezing Fog Advisory
  •  
    Freezing Fog Advisory until January 15, 12:00pm

    NOW until 12:00pm Thu

    Freezing Fog Advisory

  • Tonight

    Low: 32 °F

    Patchy
    Freezing Fog
    and Patchy
    Fog

  • Thursday

    Thursday: Patchy dense fog between 10am and 1pm. Patchy dense freezing fog before 10am. Otherwise, sunny, with a high near 52. North wind around 7 mph.

    High: 52 °F

    Patchy Dense
    Freezing Fog
    and Patchy
    Dense Fog

  • Thursday Night

    Thursday Night: Patchy fog after 7pm. Patchy freezing fog after 4am. Otherwise, clear, with a low around 32. North northwest wind around 6 mph.

    Low: 32 °F

    Patchy
    Freezing Fog
    and Patchy
    Fog

  • Friday

    Friday: Patchy freezing fog before 10am. Sunny, with a high near 51. Light north northwest wind.

    High: 51 °F

    Patchy
    Freezing Fog
    then Sunny

  • Friday Night

    Friday Night: Patchy fog after 10pm. Otherwise, clear, with a low around 31. Calm wind.

    Low: 31 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 10am. Otherwise, sunny, with a high near 52.

    High: 52 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 10pm. Otherwise, clear, with a low around 34.

    Low: 34 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 10am. Otherwise, sunny, with a high near 51.

    High: 51 °F

    Patchy Fog
    then Sunny

Detailed Forecast

Tonight
Patchy fog before 4am. Patchy freezing fog after 4am. Otherwise, clear, with a low around 32. North wind around 7 mph.
Thursday
Patchy dense fog between 10am and 1pm. Patchy dense freezing fog before 10am. Otherwise, sunny, with a high near 52. North wind around 7 mph.
Thursday Night
Patchy fog after 7pm. Patchy freezing fog after 4am. Otherwise, clear, with a low around 32. North northwest wind around 6 mph.
Friday
Patchy freezing fog before 10am. Sunny, with a high near 51. Light north northwest wind.
Friday Night
Patchy fog after 10pm. Otherwise, clear, with a low around 31. Calm wind.
Saturday
Patchy fog before 10am. Otherwise, sunny, with a high near 52.
Saturday Night
Patchy fog after 10pm. Otherwise, clear, with a low around 34.
Sunday
Patchy fog before 10am. Otherwise, sunny, with a high near 51.
Sunday Night
Patchy fog. Otherwise, clear, with a low around 32.
M.L.King Day
Patchy fog before 10am. Otherwise, sunny, with a high near 51.
Monday Night
Patchy fog. Otherwise, mostly clear, with a low around 31.
Tuesday
Patchy fog. Otherwise, sunny, with a high near 50.
Tuesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 36.
Wednesday
Patchy fog. Otherwise, mostly sunny, with a high near 48.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Happy Camp CA
 41.83°N 123.39°W (Elev. 1801 ft)
Last Update:
9:41 pm PST Jan 14, 2026
Forecast Valid:
11pm PST Jan 14, 2026-6pm PST Jan 21, 2026
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation