Dangerous Cold Persists through Monday; Wintry Weather from the Northern Plains to the Great Lakes

Bitter cold temperatures and dangerous wind chills will persist from Florida to the Northeast through Monday. Daily record low temperatures are forecast across the Southeast and Florida, with some all-time February low temperature records possible across Florida. An Alberta clipper will spread wintry precipitation across the Northern Plains today and into the upper Great Lakes into tonight. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

49°F

9°C

Humidity 78%
Wind Speed NNW 1 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Last update 01 Feb 05:52 PM PST
Extended Forecast for

3 Miles SE Illinois Valley OR

  • Tonight

    Tonight: Areas of fog.  Otherwise, mostly clear, with a low around 30. Calm wind.

    Low: 30 °F

    Areas Fog

  • Monday

    Monday: Areas of fog before 11am. Widespread freezing fog before 9am.  Otherwise, mostly sunny, with a high near 59. Calm wind.

    High: 59 °F

    Freezing Fog
    and Areas Fog
    then Sunny

  • Monday Night

    Monday Night: Patchy fog after 11pm.  Otherwise, mostly clear, with a low around 29. Calm wind.

    Low: 29 °F

    Patchy Fog

  • Tuesday

    Tuesday: Sunny, with a high near 58. Calm wind.

    High: 58 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 29. Calm wind.

    Low: 29 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 59.

    High: 59 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 30.

    Low: 30 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

Detailed Forecast

Tonight
Areas of fog. Otherwise, mostly clear, with a low around 30. Calm wind.
Monday
Areas of fog before 11am. Widespread freezing fog before 9am. Otherwise, mostly sunny, with a high near 59. Calm wind.
Monday Night
Patchy fog after 11pm. Otherwise, mostly clear, with a low around 29. Calm wind.
Tuesday
Sunny, with a high near 58. Calm wind.
Tuesday Night
Mostly clear, with a low around 29. Calm wind.
Wednesday
Sunny, with a high near 59.
Wednesday Night
Clear, with a low around 30.
Thursday
Sunny, with a high near 64.
Thursday Night
Partly cloudy, with a low around 30.
Friday
Mostly sunny, with a high near 63.
Friday Night
Partly cloudy, with a low around 30.
Saturday
A slight chance of rain. Mostly sunny, with a high near 62.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 30.
Sunday
Rain likely. Mostly cloudy, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Illinois Valley OR
 42.08°N 123.65°W (Elev. 1644 ft)
3:41 pm PST Feb 1, 2026
6pm PST Feb 1, 2026-6pm PST Feb 8, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database