Winter Weather Brings Dangerous Travel Conditions Across the Northern U.S.

Heavy lake effect snow will persist downwind of the Great Lakes through early Saturday. Snow squalls with heavy snow and gusty winds will create dangerous travel in the Interior Northeast due to low visibility and slippery roads. A major winter storm will bring moderate to heavy, accumulating snow and gusty winds from the eastern Plains to the western Great Lakes today through Saturday. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

41°F

5°C

Humidity 97%
Wind Speed SSW 1 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 28 Nov 07:52 AM PST
Extended Forecast for

4 Miles N Happy Camp CA

  • Today

    Today: Patchy fog before 10am.  Otherwise, mostly sunny, with a high near 46. Light east southeast wind.

    High: 46 °F

    Patchy Fog
    then Mostly
    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 35. Northeast wind around 9 mph.

    Low: 35 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 49. North northeast wind 5 to 7 mph becoming light and variable  in the afternoon.

    High: 49 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 36. Light northwest wind.

    Low: 36 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 47. Northeast wind 6 to 8 mph.

    High: 47 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 36.

    Low: 36 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

Detailed Forecast

Today
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 46. Light east southeast wind.
Tonight
Partly cloudy, with a low around 35. Northeast wind around 9 mph.
Saturday
Sunny, with a high near 49. North northeast wind 5 to 7 mph becoming light and variable in the afternoon.
Saturday Night
Partly cloudy, with a low around 36. Light northwest wind.
Sunday
Mostly sunny, with a high near 47. Northeast wind 6 to 8 mph.
Sunday Night
Partly cloudy, with a low around 36.
Monday
Mostly sunny, with a high near 50.
Monday Night
Partly cloudy, with a low around 39.
Tuesday
Mostly sunny, with a high near 49.
Tuesday Night
Partly cloudy, with a low around 35.
Wednesday
Mostly sunny, with a high near 46.
Wednesday Night
Partly cloudy, with a low around 36.
Thursday
Mostly sunny, with a high near 51.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Happy Camp CA
 41.86°N 123.34°W (Elev. 3599 ft)
3:40 am PST Nov 28, 2025
8am PST Nov 28, 2025-6pm PST Dec 4, 2025
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database