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

Rapid Warm-Up Forecast Across Much of the Lower 48 Today and Tuesday

Most of the U.S. starts the week calm and unseasonably warm. The Heartland will be warmest, with highs 25–30° above average. Only the Gulf Coast stays chilly. Rain today is limited to western Washington while lake effect snow continues east of Lake Ontario. Cooler air returns after Tuesday, bringing a wintry mix to the Midwest and Northeast by Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

30°F

-1°C

Humidity 99%
Wind Speed WSW 1 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 12 Jan 07:52 AM PST
Extended Forecast for

12 Miles NNE Happy Camp CA

Freezing Fog Advisory January 12, 08:03am until January 12, 11:00am
Click here for hazard details and duration
...
  •  
    Freezing Fog Advisory January 12, 08:03am until January 12, 11:00am

    NOW until 11:00am Mon

    Freezing Fog Advisory

  • Today

    High: 50 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 41. Breezy, with a south southeast wind 17 to 22 mph, with gusts as high as 33 mph.

    Low: 41 °F

    Mostly Clear
    then Mostly
    Clear and
    Breezy

  • Tuesday

    Tuesday: Sunny, with a high near 54. Breezy, with a south wind 13 to 22 mph, with gusts as high as 33 mph.

    High: 54 °F

    Sunny and
    Breezy then
    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 37. East northeast wind around 20 mph becoming southeast in the evening. Winds could gust as high as 30 mph.

    Low: 37 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 52. Northeast wind 10 to 18 mph, with gusts as high as 28 mph.

    High: 52 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 36.

    Low: 36 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 34. Breezy.

    Low: 34 °F

    Clear then
    Clear and
    Breezy

Detailed Forecast

Today
Mostly sunny, with a high near 50. East southeast wind 9 to 18 mph, with gusts as high as 28 mph.
Tonight
Mostly clear, with a low around 41. Breezy, with a south southeast wind 17 to 22 mph, with gusts as high as 33 mph.
Tuesday
Sunny, with a high near 54. Breezy, with a south wind 13 to 22 mph, with gusts as high as 33 mph.
Tuesday Night
Clear, with a low around 37. East northeast wind around 20 mph becoming southeast in the evening. Winds could gust as high as 30 mph.
Wednesday
Sunny, with a high near 52. Northeast wind 10 to 18 mph, with gusts as high as 28 mph.
Wednesday Night
Clear, with a low around 36.
Thursday
Sunny, with a high near 51.
Thursday Night
Clear, with a low around 34. Breezy.
Friday
Sunny, with a high near 50. Breezy.
Friday Night
Clear, with a low around 36.
Saturday
Sunny, with a high near 51.
Saturday Night
Mostly clear, with a low around 38.
Sunday
Sunny, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NNE Happy Camp CA
 41.96°N 123.25°W (Elev. 5138 ft)
Last Update:
3:41 am PST Jan 12, 2026
Forecast Valid:
8am PST Jan 12, 2026-6pm PST Jan 18, 2026
 
Forecast Discussion
 
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Additional Resources

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