Arctic Front Brings Winter Weather and Colder Temperatures to the Eastern U.S.

A series of cold fronts will bring heavy lake effect snow to the northern Great Lakes. The fronts will merge over the Ohio Valley and bring colder temperatures east of the Mississippi River later today into the end of the week. Additionally, wintry weather will develop over the Ohio Valley, Appalachians, and Northeast as rain switches over to snow tonight into Thursday morning. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

36°F

2°C

Humidity 98%
Wind Speed NNW 2 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 14 Jan 04:52 PM PST
Extended Forecast for

16 Miles NE Happy Camp CA

Freezing Fog Advisory January 14, 10:00pm until January 15, 12:00pm
Click here for hazard details and duration
Freezing Fog Advisory
  • Tonight

    Tonight: Clear, with a low around 46. Calm wind becoming south around 5 mph after midnight.

    Low: 46 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 60. South southeast wind around 6 mph.

    High: 60 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 49. South southeast wind around 7 mph.

    Low: 49 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 60. South wind 3 to 7 mph.

    High: 60 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 48. East southeast wind around 7 mph.

    Low: 48 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 52.

    Low: 52 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 47.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Tonight
Clear, with a low around 46. Calm wind becoming south around 5 mph after midnight.
Thursday
Sunny, with a high near 60. South southeast wind around 6 mph.
Thursday Night
Clear, with a low around 49. South southeast wind around 7 mph.
Friday
Sunny, with a high near 60. South wind 3 to 7 mph.
Friday Night
Clear, with a low around 48. East southeast wind around 7 mph.
Saturday
Sunny, with a high near 60.
Saturday Night
Mostly clear, with a low around 52.
Sunday
Sunny, with a high near 61.
Sunday Night
Mostly clear, with a low around 47.
M.L.King Day
Sunny, with a high near 58.
Monday Night
Mostly clear, with a low around 46.
Tuesday
Sunny, with a high near 59.
Tuesday Night
Partly cloudy, with a low around 38.
Wednesday
Mostly sunny, with a high near 50.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles NE Happy Camp CA
 41.97°N 123.17°W (Elev. 2999 ft)
3:41 pm PST Jan 14, 2026
5pm 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