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 >

Hazardous Weather Conditions

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

29°F

-2°C

Humidity 98%
Wind Speed S 0 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Last update 21 Jan 09:52 PM PST
Extended Forecast for

8 Miles NW Cave Junction OR

Air Stagnation Advisory January 21, 10:24pm until January 23, 04:00pm
Freezing Fog Advisory until January 22, 12:00pm
Click here for hazard details and duration
Air Stagnation Advisory
Freezing Fog Advisory
  •  
    Air Stagnation Advisory January 21, 10:24pm until January 23, 04:00pm
    Freezing Fog Advisory until January 22, 12:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 45 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 49. Light north northeast wind.

    High: 49 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 38. North northeast wind 5 to 10 mph.

    Low: 38 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 44. Northeast wind 10 to 13 mph, with gusts as high as 20 mph.

    High: 44 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 35. East northeast wind 16 to 18 mph, with gusts as high as 28 mph.

    Low: 35 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 46.

    High: 46 °F

    Partly Sunny

Detailed Forecast

Tonight
Partly cloudy, with a steady temperature around 45. Calm wind.
Thursday
Sunny, with a high near 49. Light north northeast wind.
Thursday Night
Mostly clear, with a low around 38. North northeast wind 5 to 10 mph.
Friday
Sunny, with a high near 44. Northeast wind 10 to 13 mph, with gusts as high as 20 mph.
Friday Night
Clear, with a low around 35. East northeast wind 16 to 18 mph, with gusts as high as 28 mph.
Saturday
Sunny, with a high near 46.
Saturday Night
Mostly clear, with a low around 35.
Sunday
Partly sunny, with a high near 46.
Sunday Night
Mostly cloudy, with a low around 36.
Monday
Mostly sunny, with a high near 47.
Monday Night
Partly cloudy, with a low around 36.
Tuesday
A slight chance of showers. Snow level 5100 feet. Mostly sunny, with a high near 49.
Tuesday Night
A chance of showers. Snow level 5800 feet. Mostly cloudy, with a low around 40.
Wednesday
A chance of showers. Snow level 5900 feet. Partly sunny, with a high near 47.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NW Cave Junction OR
 42.24°N 123.75°W (Elev. 4163 ft)
Last Update:
9:41 pm PST Jan 21, 2026
Forecast Valid:
10pm PST Jan 21, 2026-6pm PST Jan 28, 2026
 
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Additional Resources

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Chance of Precipitation