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

56°F

13°C

Humidity 79%
Wind Speed S 3 MPH
Barometer NA
Dewpoint 50°F (10°C)
Visibility NA
Last update 01 Feb 09:52 AM PST
Extended Forecast for

17 Miles WNW Illinois Valley OR

  • Today

    Today: Rain likely before 5pm, then a chance of rain and snow.  Snow level 5200 feet. Mostly cloudy, with a high near 42. South southwest wind 9 to 13 mph, with gusts as high as 20 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 42 °F

    Rain Likely
    then Chance
    Rain/Snow

  • Tonight

    Tonight: A chance of rain and snow before 9pm, then a chance of snow between 9pm and 10pm.  Snow level 4400 feet. Partly cloudy, with a low around 38. East southeast wind around 6 mph.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 38 °F

    Chance
    Rain/Snow
    then Mostly
    Clear

  • Monday

    Monday: Sunny, with a high near 54. Northeast wind 5 to 10 mph.

    High: 54 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 44. East southeast wind 9 to 11 mph.

    Low: 44 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 59. Southeast wind 7 to 9 mph.

    High: 59 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

Detailed Forecast

Today
Rain likely before 5pm, then a chance of rain and snow. Snow level 5200 feet. Mostly cloudy, with a high near 42. South southwest wind 9 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Tonight
A chance of rain and snow before 9pm, then a chance of snow between 9pm and 10pm. Snow level 4400 feet. Partly cloudy, with a low around 38. East southeast wind around 6 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Monday
Sunny, with a high near 54. Northeast wind 5 to 10 mph.
Monday Night
Mostly clear, with a low around 44. East southeast wind 9 to 11 mph.
Tuesday
Mostly sunny, with a high near 59. Southeast wind 7 to 9 mph.
Tuesday Night
Partly cloudy, with a low around 44.
Wednesday
Sunny, with a high near 60.
Wednesday Night
Mostly clear, with a low around 43.
Thursday
Sunny, with a high near 60.
Thursday Night
Mostly clear, with a low around 45.
Friday
Mostly sunny, with a high near 55.
Friday Night
A slight chance of rain. Snow level 6200 feet. Partly cloudy, with a low around 42.
Saturday
A chance of rain. Snow level 6400 feet. Partly sunny, with a high near 53.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles WNW Illinois Valley OR
 42.18°N 123.98°W (Elev. 4344 ft)
9:41 am PST Feb 1, 2026
10am 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