National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Prolonged Extreme Cold; Eastern U.S. Winter Storm

Another Arctic blast will surge south across the northern Plains Thursday night, crossing the Midwest and reaching the Gulf Coast Friday night. Confidence continues to increase for significant heavy snow across much of the Southern Appalachians, Carolinas, and southern Mid-Atlantic Friday into Sunday. 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 WSW 0 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 29 Jan 12:52 AM PST
Extended Forecast for

11 Miles NNE Happy Camp CA

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 38. Southwest wind around 10 mph.

    Low: 38 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 48. South southwest wind around 10 mph.

    High: 48 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 40. South southeast wind 10 to 13 mph, with gusts as high as 20 mph.

    Low: 40 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 51. South southwest wind 8 to 11 mph.

    High: 51 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 41. East southeast wind 9 to 11 mph.

    Low: 41 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain, mainly after 4am. Snow level 6700 feet lowering to 6200 feet after midnight . Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain

  • Sunday

    Sunday: Rain likely, mainly between 10am and 4pm. Snow level 5900 feet. Mostly cloudy, with a high near 46.

    High: 46 °F

    Rain Likely

  • Sunday Night

    Sunday Night: A chance of rain before 10pm. Snow level 5500 feet. Partly cloudy, with a low around 35.

    Low: 35 °F

    Chance Rain
    then Partly
    Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 38. Southwest wind around 10 mph.
Thursday
Mostly cloudy, with a high near 48. South southwest wind around 10 mph.
Thursday Night
Mostly cloudy, with a low around 40. South southeast wind 10 to 13 mph, with gusts as high as 20 mph.
Friday
Partly sunny, with a high near 51. South southwest wind 8 to 11 mph.
Friday Night
Mostly cloudy, with a low around 41. East southeast wind 9 to 11 mph.
Saturday
Partly sunny, with a high near 53.
Saturday Night
A 30 percent chance of rain, mainly after 4am. Snow level 6700 feet lowering to 6200 feet after midnight . Mostly cloudy, with a low around 40.
Sunday
Rain likely, mainly between 10am and 4pm. Snow level 5900 feet. Mostly cloudy, with a high near 46.
Sunday Night
A chance of rain before 10pm. Snow level 5500 feet. Partly cloudy, with a low around 35.
Monday
Mostly sunny, with a high near 47.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
Sunny, with a high near 55.
Tuesday Night
Mostly clear, with a low around 39.
Wednesday
Sunny, with a high near 57.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NNE Happy Camp CA
 41.94°N 123.25°W (Elev. 4360 ft)
Last Update:
12:30 am PST Jan 29, 2026
Forecast Valid:
1am PST Jan 29, 2026-6pm PST Feb 4, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation