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

37°F

3°C

Humidity 97%
Wind Speed WNW 0 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 31 Jan 08:52 PM PST
Extended Forecast for

8 Miles WNW Illinois Valley OR

  • Tonight

    Tonight: Rain, mainly after 4am.  Snow level 5000 feet. Low around 41. Southwest wind around 8 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Mostly Cloudy
    then Rain

  • Sunday

    Sunday: Rain before 9am, then a chance of rain after 10am.  Snow level 6000 feet lowering to 5200 feet in the afternoon . High near 46. Southwest wind 8 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 46 °F

    Rain then
    Chance Rain

  • Sunday Night

    Sunday Night: A 20 percent chance of rain before 10pm.  Snow level 4900 feet. Partly cloudy, with a low around 36. Southwest wind around 5 mph becoming south southeast after midnight.

    Low: 36 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 54. Northeast wind around 6 mph.

    High: 54 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41. East wind around 7 mph.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 60.

    High: 60 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Tonight
Rain, mainly after 4am. Snow level 5000 feet. Low around 41. Southwest wind around 8 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Rain before 9am, then a chance of rain after 10am. Snow level 6000 feet lowering to 5200 feet in the afternoon . High near 46. Southwest wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
A 20 percent chance of rain before 10pm. Snow level 4900 feet. Partly cloudy, with a low around 36. Southwest wind around 5 mph becoming south southeast after midnight.
Monday
Sunny, with a high near 54. Northeast wind around 6 mph.
Monday Night
Mostly clear, with a low around 41. East wind around 7 mph.
Tuesday
Mostly sunny, with a high near 60.
Tuesday Night
Mostly clear, with a low around 42.
Wednesday
Sunny, with a high near 61.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Sunny, with a high near 61.
Thursday Night
Mostly clear, with a low around 44.
Friday
Sunny, with a high near 58.
Friday Night
A slight chance of rain. Partly cloudy, with a low around 43.
Saturday
A chance of rain. Mostly 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)
3:41 pm PST Jan 31, 2026
9pm PST Jan 31, 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