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 >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

27°F

-3°C

Humidity 98%
Wind Speed S 0 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Last update 16 Jan 10:52 PM PST
Extended Forecast for

9 Miles ENE Happy Camp CA

  • Tonight

    Tonight: Widespread dense fog. Otherwise, mostly cloudy, with a low around 39. East northeast wind around 7 mph.

    Low: 39 °F

    Dense Fog

  • Saturday

    Saturday: Widespread dense fog before 1pm. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 59. East wind 5 to 7 mph.

    High: 59 °F

    Dense Fog

  • Saturday Night

    Saturday Night: Widespread fog after 7pm. Otherwise, increasing clouds, with a low around 38. Light east wind.

    Low: 38 °F

    Fog

  • Sunday

    Sunday: Widespread fog before 1pm. Otherwise, mostly sunny, with a high near 55. Light east wind.

    High: 55 °F

    Fog

  • Sunday Night

    Sunday Night: Widespread fog after 7pm. Otherwise, mostly clear, with a low around 36. Light east southeast wind.

    Low: 36 °F

    Fog

  • M.L.King Day

    M.L.King Day: Widespread fog before 1pm. Otherwise, sunny, with a high near 56.

    High: 56 °F

    Fog

  • Monday Night

    Monday Night: Widespread fog after 7pm. Otherwise, clear, with a low around 35.

    Low: 35 °F

    Fog

  • Tuesday

    Tuesday: Widespread fog before 1pm. Otherwise, sunny, with a high near 57.

    High: 57 °F

    Fog

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

Tonight
Widespread dense fog. Otherwise, mostly cloudy, with a low around 39. East northeast wind around 7 mph.
Saturday
Widespread dense fog before 1pm. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 59. East wind 5 to 7 mph.
Saturday Night
Widespread fog after 7pm. Otherwise, increasing clouds, with a low around 38. Light east wind.
Sunday
Widespread fog before 1pm. Otherwise, mostly sunny, with a high near 55. Light east wind.
Sunday Night
Widespread fog after 7pm. Otherwise, mostly clear, with a low around 36. Light east southeast wind.
M.L.King Day
Widespread fog before 1pm. Otherwise, sunny, with a high near 56.
Monday Night
Widespread fog after 7pm. Otherwise, clear, with a low around 35.
Tuesday
Widespread fog before 1pm. Otherwise, sunny, with a high near 57.
Tuesday Night
Partly cloudy, with a low around 37.
Wednesday
Mostly sunny, with a high near 54.
Wednesday Night
Partly cloudy, with a low around 38.
Thursday
Mostly sunny, with a high near 57.
Thursday Night
Partly cloudy, with a low around 39.
Friday
Mostly sunny, with a high near 56.
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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:
10:16 pm PST Jan 16, 2026
Forecast Valid:
11pm PST Jan 16, 2026-6pm PST Jan 23, 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