Powerful Winter Storm from the Upper Midwest into the Northeast; Severe Thunderstorms in the Midwest and Ohio Valley

A rapidly-intensifying storm is expected to bring heavy snow, blizzard conditions, and icing from the Upper Midwest through the Great Lakes and Northeast. Scattered severe thunderstorms may produce severe/damaging wind gusts and a couple of tornadoes across parts of the Midwest and lower Ohio Valley through the evening. Arctic air will expand across the central and southern U.S.. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

27°F

-3°C

Humidity 97%
Wind Speed SW 0 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Last update 28 Dec 11:52 PM PST
Extended Forecast for

12 Miles W Happy Camp CA

  • Overnight

    Overnight: Partly cloudy, with a low around 33. Northeast wind around 14 mph, with gusts as high as 21 mph.

    Low: 33 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 46. Northeast wind 6 to 10 mph.

    High: 46 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 37. Northeast wind around 8 mph.

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 48. East wind 3 to 5 mph.

    High: 48 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 37. East wind around 7 mph.

    Low: 37 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 10 percent chance of rain after 4pm.  Snow level 6400 feet. Partly sunny, with a high near 46.

    High: 46 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain, mainly after 10pm.  Snow level 7000 feet. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Chance Rain

  • New Year's Day

    New Year's Day: Rain likely, mainly after 10am.  Snow level 7200 feet. Mostly cloudy, with a high near 41.

    High: 41 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely.  Snow level 6900 feet. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Rain Likely

Detailed Forecast

Overnight
Partly cloudy, with a low around 33. Northeast wind around 14 mph, with gusts as high as 21 mph.
Monday
Sunny, with a high near 46. Northeast wind 6 to 10 mph.
Monday Night
Mostly clear, with a low around 37. Northeast wind around 8 mph.
Tuesday
Sunny, with a high near 48. East wind 3 to 5 mph.
Tuesday Night
Partly cloudy, with a low around 37. East wind around 7 mph.
Wednesday
A 10 percent chance of rain after 4pm. Snow level 6400 feet. Partly sunny, with a high near 46.
Wednesday Night
A 40 percent chance of rain, mainly after 10pm. Snow level 7000 feet. Mostly cloudy, with a low around 38.
New Year's Day
Rain likely, mainly after 10am. Snow level 7200 feet. Mostly cloudy, with a high near 41.
Thursday Night
Rain likely. Snow level 6900 feet. Mostly cloudy, with a low around 38.
Friday
Rain and snow likely. Snow level 5800 feet. Mostly cloudy, with a high near 40.
Friday Night
Rain and snow likely. Mostly cloudy, with a low around 34.
Saturday
Snow likely. Mostly cloudy, with a high near 38.
Saturday Night
Snow likely. Mostly cloudy, with a low around 34.
Sunday
Snow likely. Mostly cloudy, with a high near 38.
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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 Dec 28, 2025
12am PST Dec 29, 2025-6pm PST Jan 4, 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