Another Arctic Blast in the East; Eastern U.S. Winter Storm

A powerful Arctic blast will bring dangerously cold, record low temperatures to the upper Ohio Valley, Mid-Atlantic, Gulf Coast and Southeast U.S. this weekend. A rapidly deepening storm will produce widespread heavy snow and wind from the southern Appalachians across the Carolinas and southern Virginia into Sunday. Storm-force winds and coastal flooding will be possible along the East Coast. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

57°F

14°C

Humidity 76%
Wind Speed SSW 4 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Last update 01 Feb 10:52 AM PST
Extended Forecast for

8 Miles WNW Illinois Valley OR

  • Today

    Today: A 40 percent chance of rain, mainly before 4pm.  Snow level 5200 feet. Partly sunny, with a high near 46. Southwest wind 8 to 10 mph.

    High: 46 °F

    Chance Rain

  • Tonight

    Tonight: A 20 percent chance of rain before 10pm.  Snow level 4500 feet. Mostly clear, with a low around 36. Southwest wind around 5 mph becoming calm  in the evening.

    Low: 36 °F

    Slight Chance
    Rain then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 54. Northeast wind 5 to 7 mph.

    High: 54 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41. East northeast wind around 8 mph.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 60. East wind around 7 mph.

    High: 60 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

Detailed Forecast

Today
A 40 percent chance of rain, mainly before 4pm. Snow level 5200 feet. Partly sunny, with a high near 46. Southwest wind 8 to 10 mph.
Tonight
A 20 percent chance of rain before 10pm. Snow level 4500 feet. Mostly clear, with a low around 36. Southwest wind around 5 mph becoming calm in the evening.
Monday
Sunny, with a high near 54. Northeast wind 5 to 7 mph.
Monday Night
Mostly clear, with a low around 41. East northeast wind around 8 mph.
Tuesday
Sunny, with a high near 60. East wind around 7 mph.
Tuesday Night
Partly cloudy, with a low around 42.
Wednesday
Sunny, with a high near 61.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Sunny, with a high near 61.
Thursday Night
Mostly clear, with a low around 43.
Friday
Sunny, with a high near 57.
Friday Night
A slight chance of rain. Partly cloudy, with a low around 41.
Saturday
A chance of rain. Partly sunny, with a high near 55.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles WNW Illinois Valley OR
 42.14°N 123.81°W (Elev. 3209 ft)
9:41 am PST Feb 1, 2026
11am PST Feb 1, 2026-6pm PST Feb 7, 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