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 W Happy Camp CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 41. South southeast wind around 11 mph.

    Low: 41 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 51. South wind 9 to 11 mph.

    High: 51 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A chance of rain before 1am, then snow likely, possibly mixed with rain.  Snow level 5500 feet. Mostly cloudy, with a low around 38. South southwest wind around 11 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 7am.  Snow level 5800 feet. Mostly cloudy, with a high near 43. Southwest wind around 10 mph, with gusts as high as 18 mph.  Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 43 °F

    Rain/Snow
    Likely then
    Rain Likely

  • Sunday Night

    Sunday Night: A 20 percent chance of rain before 10pm.  Snow level 5200 feet. Partly cloudy, with a low around 35. West southwest wind around 7 mph becoming north after midnight.

    Low: 35 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Tuesday Night

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

    Low: 42 °F

    Partly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 41. South southeast wind around 11 mph.
Saturday
Partly sunny, with a high near 51. South wind 9 to 11 mph.
Saturday Night
A chance of rain before 1am, then snow likely, possibly mixed with rain. Snow level 5500 feet. Mostly cloudy, with a low around 38. South southwest wind around 11 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Sunday
Rain and snow likely, becoming all rain after 7am. Snow level 5800 feet. Mostly cloudy, with a high near 43. Southwest wind around 10 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Sunday Night
A 20 percent chance of rain before 10pm. Snow level 5200 feet. Partly cloudy, with a low around 35. West southwest wind around 7 mph becoming north after midnight.
Monday
Mostly sunny, with a high near 50.
Monday Night
Mostly clear, with a low around 39.
Tuesday
Sunny, with a high near 56.
Tuesday Night
Partly cloudy, with a low around 42.
Wednesday
Sunny, with a high near 58.
Wednesday Night
Mostly clear, with a low around 42.
Thursday
Sunny, with a high near 58.
Thursday Night
Partly cloudy, with a low around 42.
Friday
Mostly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles W Happy Camp CA
 41.79°N 123.59°W (Elev. 5000 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