Snow Squalls May Impact the Northeast on Thursday; Dangerously Cold Arctic Air Impact the North-Central US

Snow showers and snow squalls are likely to develop across the Northeast on Thursday. Lake effect snow will persist downwind of the Great Lakes. An arctic blast will bring frigid temperatures, gusty winds and dangerous wind chills to the Northern Plains before expanding to the South and East. A major winter storm will begin impacting the Southern Plains and Lower Mississippi Valley Friday. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

31°F

-1°C

Humidity 98%
Wind Speed S 0 MPH
Barometer NA
Dewpoint 30°F (-1°C)
Visibility NA
Last update 21 Jan 08:52 PM PST
Extended Forecast for

9 Miles ENE Happy Camp CA

  • Tonight

    Tonight: Partly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 56. Light and variable wind.

    High: 56 °F

    Sunny

  • Thursday Night

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

    Low: 32 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 53. Northeast wind 3 to 5 mph.

    High: 53 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 30. East wind around 5 mph.

    Low: 30 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 55.

    High: 55 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 29.

    Low: 29 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 54.

    High: 54 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 36. Calm wind.
Thursday
Sunny, with a high near 56. Light and variable wind.
Thursday Night
Mostly clear, with a low around 32. Light and variable wind becoming southeast around 5 mph after midnight.
Friday
Sunny, with a high near 53. Northeast wind 3 to 5 mph.
Friday Night
Clear, with a low around 30. East wind around 5 mph.
Saturday
Sunny, with a high near 55.
Saturday Night
Mostly clear, with a low around 29.
Sunday
Partly sunny, with a high near 54.
Sunday Night
Mostly cloudy, with a low around 34.
Monday
Mostly sunny, with a high near 56.
Monday Night
Partly cloudy, with a low around 34.
Tuesday
Mostly sunny, with a high near 58.
Tuesday Night
A slight chance of showers. Mostly cloudy, with a low around 37.
Wednesday
A chance of showers. Partly sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles ENE Happy Camp CA
 41.84°N 123.19°W (Elev. 1421 ft)
8:31 pm PST Jan 21, 2026
9pm PST Jan 21, 2026-6pm PST Jan 28, 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