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 89%
Wind Speed SW 0 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 30 Jan 09:52 PM PST
Extended Forecast for

12 Miles NNE Happy Camp CA

  • Tonight

    Tonight: Mostly cloudy, with a steady temperature around 42. South wind around 10 mph.

    Low: 42 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 49. South wind 7 to 10 mph.

    High: 49 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of rain before 1am, then snow likely, possibly mixed with rain.  Snow level 5600 feet. Mostly cloudy, with a low around 38. South wind around 10 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 38 °F

    Chance Rain
    then
    Rain/Snow
    Likely

  • Sunday

    Sunday: Rain and snow likely, becoming all rain after 10am.  Snow level 5300 feet rising to 5800 feet in the afternoon. Mostly cloudy, then gradually becoming sunny, with a high near 43. Southwest wind around 9 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 43 °F

    Rain/Snow
    Likely then
    Rain Likely

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 34. West southwest wind around 7 mph.

    Low: 34 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 54.

    High: 54 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a steady temperature around 42. South wind around 10 mph.
Saturday
Partly sunny, with a high near 49. South wind 7 to 10 mph.
Saturday Night
A chance of rain before 1am, then snow likely, possibly mixed with rain. Snow level 5600 feet. Mostly cloudy, with a low around 38. South wind around 10 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Sunday
Rain and snow likely, becoming all rain after 10am. Snow level 5300 feet rising to 5800 feet in the afternoon. Mostly cloudy, then gradually becoming sunny, with a high near 43. Southwest wind around 9 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Sunday Night
Partly cloudy, with a low around 34. West southwest wind around 7 mph.
Monday
Mostly sunny, with a high near 49.
Monday Night
Mostly clear, with a low around 38.
Tuesday
Sunny, with a high near 54.
Tuesday Night
Partly cloudy, with a low around 40.
Wednesday
Sunny, with a high near 55.
Wednesday Night
Mostly clear, with a low around 40.
Thursday
Sunny, with a high near 57.
Thursday Night
Partly cloudy, with a low around 40.
Friday
Sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NNE Happy Camp CA
 41.95°N 123.31°W (Elev. 4911 ft)
9:41 pm PST Jan 30, 2026
10pm PST Jan 30, 2026-6pm PST Feb 6, 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