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

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

28°F

-2°C

Humidity 98%
Wind Speed SE 0 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Last update 22 Jan 02:52 AM PST
Extended Forecast for

Happy Camp CA

  • Overnight

    Overnight: Patchy fog. Otherwise, partly cloudy, with a low around 35. Calm wind.

    Low: 35 °F

    Patchy Fog

  • Thursday

    Thursday: Sunny, with a high near 56. East northeast wind around 5 mph becoming calm in the morning.

    High: 56 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 35. North northeast wind 3 to 5 mph.

    Low: 35 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 54. Northeast wind around 6 mph.

    High: 54 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 28. East northeast wind around 6 mph.

    Low: 28 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 54.

    High: 54 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Patchy fog. Otherwise, partly cloudy, with a low around 35. Calm wind.
Thursday
Sunny, with a high near 56. East northeast wind around 5 mph becoming calm in the morning.
Thursday Night
Mostly clear, with a low around 35. North northeast wind 3 to 5 mph.
Friday
Sunny, with a high near 54. Northeast wind around 6 mph.
Friday Night
Clear, with a low around 28. East northeast wind around 6 mph.
Saturday
Sunny, with a high near 53.
Saturday Night
Mostly clear, with a low around 27.
Sunday
Mostly sunny, with a high near 54.
Sunday Night
Mostly cloudy, with a low around 33.
Monday
Partly sunny, with a high near 53.
Monday Night
Partly cloudy, with a low around 34.
Tuesday
A slight chance of rain. Partly sunny, with a high near 54.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 39.
Wednesday
A chance of rain. Mostly cloudy, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Happy Camp CA
 41.81°N 123.36°W (Elev. 1299 ft)
Last Update:
2:21 am PST Jan 22, 2026
Forecast Valid:
3am PST Jan 22, 2026-6pm PST Jan 28, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation