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

Great Lakes Snow through Friday; High Winds in the Northern and Central Plains

A clipper storm will drop south from Canada today 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 this 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

29°F

-2°C

Humidity 99%
Wind Speed SW 2 MPH
Barometer NA
Dewpoint 29°F (-2°C)
Visibility NA
Last update 15 Jan 07:52 AM PST
Extended Forecast for

9 Miles ENE Happy Camp CA

Freezing Fog Advisory January 15, 08:49am until January 15, 12:00pm
Click here for hazard details and duration
Freezing Fog Advisory
  •  
    Freezing Fog Advisory January 15, 08:49am until January 15, 12:00pm

    NOW until 12:00pm Thu

    Freezing Fog Advisory

  • Today

    High: 55 °F

    Patchy Fog

  • Tonight

    Tonight: Patchy dense fog after 7pm. Otherwise, clear, with a low around 34. East wind around 8 mph.

    Low: 34 °F

    Patchy Dense
    Fog

  • Friday

    Friday: Patchy dense fog before 10am. Otherwise, sunny, with a high near 55. East northeast wind around 8 mph.

    High: 55 °F

    Patchy Dense
    Fog then
    Sunny

  • Friday Night

    Friday Night: Patchy fog after 10pm. Otherwise, clear, with a low around 35. Calm wind.

    Low: 35 °F

    Patchy Fog

  • Saturday

    Saturday: Patchy fog before 10am. Otherwise, sunny, with a high near 58. Light east southeast wind.

    High: 58 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 10pm. Otherwise, mostly clear, with a low around 38.

    Low: 38 °F

    Patchy Fog

  • Sunday

    Sunday: Patchy fog before 10am. Otherwise, sunny, with a high near 56.

    High: 56 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Patchy fog. Otherwise, mostly clear, with a low around 35.

    Low: 35 °F

    Patchy Fog

Detailed Forecast

Today
Patchy fog before 1pm. Otherwise, sunny, with a high near 55. East northeast wind 6 to 10 mph.
Tonight
Patchy dense fog after 7pm. Otherwise, clear, with a low around 34. East wind around 8 mph.
Friday
Patchy dense fog before 10am. Otherwise, sunny, with a high near 55. East northeast wind around 8 mph.
Friday Night
Patchy fog after 10pm. Otherwise, clear, with a low around 35. Calm wind.
Saturday
Patchy fog before 10am. Otherwise, sunny, with a high near 58. Light east southeast wind.
Saturday Night
Patchy fog after 10pm. Otherwise, mostly clear, with a low around 38.
Sunday
Patchy fog before 10am. Otherwise, sunny, with a high near 56.
Sunday Night
Patchy fog. Otherwise, mostly clear, with a low around 35.
M.L.King Day
Patchy fog before 10am. Otherwise, sunny, with a high near 56.
Monday Night
Patchy fog after 10pm. Otherwise, mostly clear, with a low around 34.
Tuesday
Patchy fog. Otherwise, sunny, with a high near 55.
Tuesday Night
Patchy fog. Otherwise, partly cloudy, with a low around 38.
Wednesday
Patchy fog. Otherwise, mostly sunny, with a high near 58.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles ENE Happy Camp CA
 41.84°N 123.19°W (Elev. 1421 ft)
Last Update:
3:41 am PST Jan 15, 2026
Forecast Valid:
8am PST Jan 15, 2026-6pm PST Jan 21, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation