Prolonged Extreme Cold; Eastern U.S. Winter Storm

A powerful Arctic blast will bring dangerously cold, record low temperatures to the Gulf Coast, upper Ohio Valley, Mid-Atlantic, and Southeast U.S. into this weekend. A rapidly deepening storm centered just off the North Carolina coast Friday night through Saturday night will produce widespread heavy snow and wind from the southern Appalachians across the Carolinas and southern Virginia. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10375°NLon: 123.68508°WElev: 1389.0ft.

NA

35°F

2°C

Humidity 98%
Wind Speed S 1 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 29 Jan 10:52 PM PST
Extended Forecast for

12 Miles NNE Happy Camp CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 40. South southwest wind around 16 mph.

    Low: 40 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 48. South southwest wind 8 to 14 mph.

    High: 48 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 42. Southeast wind 11 to 15 mph.

    Low: 42 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 52. South southeast wind 13 to 15 mph, with gusts as high as 18 mph.

    High: 52 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain, mainly after 4am.  Snow level 6600 feet lowering to 5900 feet after midnight . Mostly cloudy, with a low around 40. South wind 14 to 17 mph.

    Low: 40 °F

    Chance Rain

  • Sunday

    Sunday: Rain likely, possibly mixed with snow, becoming all rain after 1pm.  Snow level 5600 feet. Mostly cloudy, with a high near 43. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 43 °F

    Rain/Snow
    Likely

  • Sunday Night

    Sunday Night: A chance of rain, mixing with snow after 7pm, then gradually ending.  Snow level 5600 feet lowering to 5100 feet after midnight . Partly cloudy, with a low around 34. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 34 °F

    Chance
    Rain/Snow
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 47.

    High: 47 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 37.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 40. South southwest wind around 16 mph.
Friday
Mostly sunny, with a high near 48. South southwest wind 8 to 14 mph.
Friday Night
Mostly cloudy, with a low around 42. Southeast wind 11 to 15 mph.
Saturday
Partly sunny, with a high near 52. South southeast wind 13 to 15 mph, with gusts as high as 18 mph.
Saturday Night
A 30 percent chance of rain, mainly after 4am. Snow level 6600 feet lowering to 5900 feet after midnight . Mostly cloudy, with a low around 40. South wind 14 to 17 mph.
Sunday
Rain likely, possibly mixed with snow, becoming all rain after 1pm. Snow level 5600 feet. Mostly cloudy, with a high near 43. Chance of precipitation is 60%. Little or no snow accumulation expected.
Sunday Night
A chance of rain, mixing with snow after 7pm, then gradually ending. Snow level 5600 feet lowering to 5100 feet after midnight . Partly cloudy, with a low around 34. Chance of precipitation is 30%. Little or no snow accumulation expected.
Monday
Mostly sunny, with a high near 47.
Monday Night
Mostly clear, with a low around 37.
Tuesday
Sunny, with a high near 54.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Mostly sunny, with a high near 55.
Wednesday Night
Partly cloudy, with a low around 41.
Thursday
Mostly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NNE Happy Camp CA
 41.96°N 123.25°W (Elev. 5138 ft)
9:41 pm PST Jan 29, 2026
11pm PST Jan 29, 2026-6pm PST Feb 5, 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