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 >

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 SSW 0 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 12 Jan 06:52 AM PST
Extended Forecast for

14 Miles SE Agness OR

Air Stagnation Advisory January 12, 07:49am until January 16, 04:00am
Freezing Fog Advisory January 12, 07:49am until January 12, 11:00am
Click here for hazard details and duration
Air Stagnation Advisory
...
  •  
    Air Stagnation Advisory January 12, 07:49am until January 16, 04:00am
    Freezing Fog Advisory January 12, 07:49am until January 12, 11:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Today

    High: 55 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 45. East wind around 8 mph.

    Low: 45 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60. East wind 6 to 8 mph.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 43. East wind around 7 mph.

    Low: 43 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 60. Northeast wind around 7 mph.

    High: 60 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 42.

    Low: 42 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 41.

    Low: 41 °F

    Clear

Detailed Forecast

Today
Mostly sunny, with a high near 55. East wind around 6 mph.
Tonight
Mostly clear, with a low around 45. East wind around 8 mph.
Tuesday
Sunny, with a high near 60. East wind 6 to 8 mph.
Tuesday Night
Clear, with a low around 43. East wind around 7 mph.
Wednesday
Sunny, with a high near 60. Northeast wind around 7 mph.
Wednesday Night
Clear, with a low around 42.
Thursday
Sunny, with a high near 60.
Thursday Night
Clear, with a low around 41.
Friday
Sunny, with a high near 60.
Friday Night
Clear, with a low around 41.
Saturday
Sunny, with a high near 60.
Saturday Night
Mostly clear, with a low around 42.
Sunday
Sunny, with a high near 58.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
14 Miles SE Agness OR
 42.42°N 123.87°W (Elev. 2461 ft)
3:41 am PST Jan 12, 2026
7am PST Jan 12, 2026-6pm PST Jan 18, 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