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

27°F

-3°C

Humidity 98%
Wind Speed SSW 0 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Last update 22 Jan 01:52 AM PST
Extended Forecast for

17 Miles SSE Agness OR

Air Stagnation Advisory January 22, 02:47am 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 22, 02:47am until January 23, 04:00pm
    Freezing Fog Advisory until January 22, 12:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 45 °F

    Clear

  • Thursday

    Thursday: Increasing clouds, with a high near 56. East wind around 6 mph becoming calm.

    High: 56 °F

    Increasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 39. Northeast wind 6 to 10 mph.

    Low: 39 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 51. Northeast wind around 10 mph.

    High: 51 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 40. East northeast wind around 15 mph, with gusts as high as 23 mph.

    Low: 40 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 53.

    High: 53 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

Detailed Forecast

Overnight
Clear, with a low around 45. Calm wind.
Thursday
Increasing clouds, with a high near 56. East wind around 6 mph becoming calm.
Thursday Night
Mostly clear, with a low around 39. Northeast wind 6 to 10 mph.
Friday
Sunny, with a high near 51. Northeast wind around 10 mph.
Friday Night
Clear, with a low around 40. East northeast wind around 15 mph, with gusts as high as 23 mph.
Saturday
Sunny, with a high near 53.
Saturday Night
Mostly clear, with a low around 40.
Sunday
Partly sunny, with a high near 51.
Sunday Night
Mostly cloudy, with a low around 39.
Monday
Partly sunny, with a high near 51.
Monday Night
Partly cloudy, with a low around 39.
Tuesday
A slight chance of rain. Snow level 5000 feet. Partly sunny, with a high near 53.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 45.
Wednesday
Rain likely. Mostly cloudy, with a high near 48.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles SSE Agness OR
 42.32°N 123.96°W (Elev. 2408 ft)
Last Update:
2:21 am PST Jan 22, 2026
Forecast Valid:
2am PST Jan 22, 2026-6pm PST Jan 28, 2026
 
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Additional Resources

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National Digital Forecast Database

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National Digital Forecast Database Weather Element Forecast

Chance of Precipitation