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

38°F

3°C

Humidity 98%
Wind Speed E 3 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Last update 01 Feb 01:52 AM PST
Extended Forecast for

12 Miles NE Happy Camp CA

  • Overnight

    Overnight: A 20 percent chance of snow after 3am.  Mostly cloudy, with a steady temperature around 39. South southwest wind around 14 mph, with gusts as high as 18 mph.

    Low: 39 °F

    Slight Chance
    Snow

  • Sunday

    Sunday: A chance of rain and snow, mainly before 10am.  Snow level 5800 feet. Mostly cloudy, then gradually becoming sunny, with a high near 41. Southwest wind 7 to 16 mph, with gusts as high as 24 mph.  Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    High: 41 °F

    Chance
    Rain/Snow
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 32. Light and variable wind becoming east southeast around 5 mph after midnight.

    Low: 32 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 49. East northeast wind 3 to 6 mph.

    High: 49 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 38. East wind around 7 mph.

    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 39.

    Low: 39 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Wednesday Night

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

    Low: 38 °F

    Mostly Clear

Detailed Forecast

Overnight
A 20 percent chance of snow after 3am. Mostly cloudy, with a steady temperature around 39. South southwest wind around 14 mph, with gusts as high as 18 mph.
Sunday
A chance of rain and snow, mainly before 10am. Snow level 5800 feet. Mostly cloudy, then gradually becoming sunny, with a high near 41. Southwest wind 7 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Sunday Night
Mostly clear, with a low around 32. Light and variable wind becoming east southeast around 5 mph after midnight.
Monday
Sunny, with a high near 49. East northeast wind 3 to 6 mph.
Monday Night
Mostly clear, with a low around 38. East wind around 7 mph.
Tuesday
Sunny, with a high near 54.
Tuesday Night
Partly cloudy, with a low around 39.
Wednesday
Sunny, with a high near 55.
Wednesday Night
Mostly clear, with a low around 38.
Thursday
Sunny, with a high near 55.
Thursday Night
Mostly clear, with a low around 41.
Friday
Sunny, with a high near 52.
Friday Night
Partly cloudy, with a low around 40.
Saturday
A slight chance of rain and snow. Snow level 6300 feet rising to 6900 feet in the afternoon. Mostly sunny, with a high near 50.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NE Happy Camp CA
 41.92°N 123.21°W (Elev. 5666 ft)
2:22 am PST Feb 1, 2026
2am 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