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

16 Miles NE Happy Camp CA

  • Overnight

    Overnight: Partly cloudy, with a steady temperature around 46. Light south southwest wind.

    Low: 46 °F

    Partly Cloudy

  • Thursday

    Thursday: Increasing clouds, with a high near 58. Light and variable wind.

    High: 58 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly cloudy, then gradually becoming clear, with a low around 34. South wind around 6 mph becoming north after midnight.

    Low: 34 °F

    Decreasing
    Clouds

  • Friday

    Friday: Sunny, with a high near 50. North northeast wind 7 to 10 mph.

    High: 50 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 37. East wind around 9 mph.

    Low: 37 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 51.

    High: 51 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a steady temperature around 46. Light south southwest wind.
Thursday
Increasing clouds, with a high near 58. Light and variable wind.
Thursday Night
Mostly cloudy, then gradually becoming clear, with a low around 34. South wind around 6 mph becoming north after midnight.
Friday
Sunny, with a high near 50. North northeast wind 7 to 10 mph.
Friday Night
Clear, with a low around 37. East wind around 9 mph.
Saturday
Sunny, with a high near 51.
Saturday Night
Mostly clear, with a low around 39.
Sunday
Mostly sunny, with a high near 51.
Sunday Night
Mostly cloudy, with a low around 36.
Monday
Mostly sunny, with a high near 50.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
Partly sunny, with a high near 52.
Tuesday Night
A slight chance of rain. Snow level 5600 feet. Mostly cloudy, with a low around 41.
Wednesday
A chance of rain. Snow level 5400 feet rising to 6000 feet in the afternoon. Mostly cloudy, with a high near 49.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
16 Miles NE Happy Camp CA
 41.97°N 123.17°W (Elev. 2999 ft)
Last Update:
2:21 am PST Jan 22, 2026
Forecast Valid:
3am PST Jan 22, 2026-6pm PST Jan 28, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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