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

Tracking Winter Weather and Frigid Temperatures Through This Weekend

A clipper storm will move across the Great Lakes through this weekend with periods of light snow, gusty winds, and lake effect snow bands which could make for hazardous travel at times. A frigid airmass will spread eastward behind this storm into the Midwest and Eastern U.S. through the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

27°F

-3°C

Humidity 97%
Wind Speed NE 0 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Last update 16 Jan 08:52 AM PST
Extended Forecast for

11 Miles NNE Happy Camp CA

Freezing Fog Advisory January 16, 09:46am until January 16, 12:00pm
Click here for hazard details and duration
Freezing Fog Advisory
  •  
    Freezing Fog Advisory January 16, 09:46am until January 16, 12:00pm

    NOW until 12:00pm Fri

    Freezing Fog Advisory

  • Today

    High: 56 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 42. Southeast wind around 14 mph, with gusts as high as 22 mph.

    Low: 42 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 52. Southeast wind 8 to 14 mph, with gusts as high as 22 mph.

    High: 52 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 38. South southeast wind around 10 mph.

    Low: 38 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 52. South southwest wind 5 to 10 mph.

    High: 52 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

Detailed Forecast

Today
Sunny, with a high near 56. East southeast wind 9 to 14 mph, with gusts as high as 22 mph.
Tonight
Clear, with a low around 42. Southeast wind around 14 mph, with gusts as high as 22 mph.
Saturday
Sunny, with a high near 52. Southeast wind 8 to 14 mph, with gusts as high as 22 mph.
Saturday Night
Partly cloudy, with a low around 38. South southeast wind around 10 mph.
Sunday
Mostly sunny, with a high near 52. South southwest wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 34.
M.L.King Day
Sunny, with a high near 51.
Monday Night
Mostly clear, with a low around 35.
Tuesday
Mostly sunny, with a high near 51.
Tuesday Night
Partly cloudy, with a low around 37.
Wednesday
Mostly sunny, with a high near 47.
Wednesday Night
Partly cloudy, with a low around 36.
Thursday
A slight chance of rain and snow. Snow level 4800 feet. Partly sunny, with a high near 42.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NNE Happy Camp CA
 41.94°N 123.25°W (Elev. 4360 ft)
Last Update:
9:41 am PST Jan 16, 2026
Forecast Valid:
9am PST Jan 16, 2026-6pm PST Jan 22, 2026
 
Forecast Discussion
 
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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