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

39°F

4°C

Humidity 97%
Wind Speed WNW 0 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 29 Jan 07:52 PM PST
Extended Forecast for

9 Miles ENE Happy Camp CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 40. East southeast wind 3 to 5 mph.

    Low: 40 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 61. Light and variable wind.

    High: 61 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 40. Light east southeast wind.

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 63. Southeast wind 3 to 5 mph.

    High: 63 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain, mainly after 4am.  Mostly cloudy, with a low around 40. South southeast wind around 5 mph.

    Low: 40 °F

    Chance Rain

  • Sunday

    Sunday: Rain likely, mainly between 10am and 4pm.  Partly sunny, with a high near 58. Chance of precipitation is 60%.

    High: 58 °F

    Rain Likely

  • Sunday Night

    Sunday Night: A 30 percent chance of rain before 10pm.  Partly cloudy, with a low around 36.

    Low: 36 °F

    Chance Rain
    then Partly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 60.

    High: 60 °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. East southeast wind 3 to 5 mph.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 61. Light and variable wind.
Friday Night
Mostly cloudy, with a low around 40. Light east southeast wind.
Saturday
Partly sunny, with a high near 63. Southeast wind 3 to 5 mph.
Saturday Night
A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 40. South southeast wind around 5 mph.
Sunday
Rain likely, mainly between 10am and 4pm. Partly sunny, with a high near 58. Chance of precipitation is 60%.
Sunday Night
A 30 percent chance of rain before 10pm. Partly cloudy, with a low around 36.
Monday
Mostly sunny, with a high near 60.
Monday Night
Mostly clear, with a low around 37.
Tuesday
Sunny, with a high near 64.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 41.
Thursday
Sunny, with a high near 67.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles ENE Happy Camp CA
 41.84°N 123.19°W (Elev. 1421 ft)
3:41 pm PST Jan 29, 2026
8pm 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