Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East

A significant, long-duration winter storm will bring widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Widespread travel disruptions, prolonged power outages, and vast tree damage is likely. Frigid temperatures, gusty winds, and dangerous wind chills will expand from the north-central US to the Southern Plains, MS Valley, and Midwest. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

33°F

1°C

Humidity 96%
Wind Speed W 0 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 22 Jan 06:52 PM PST
Extended Forecast for

14 Miles SE Agness OR

Air Stagnation Advisory January 22, 07:06pm until January 23, 04:00pm
Freezing Fog Advisory January 22, 07:06pm until January 23, 12:00pm
Click here for hazard details and duration
Air Stagnation Advisory
Freezing Fog Advisory
  •  
    Air Stagnation Advisory January 22, 07:06pm until January 23, 04:00pm
    Freezing Fog Advisory January 22, 07:06pm until January 23, 12:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Tonight

    Low: 43 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 49. North northeast wind 6 to 8 mph.

    High: 49 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 38. East northeast wind around 8 mph.

    Low: 38 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 52. East wind around 9 mph.

    High: 52 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 39. East wind around 6 mph.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

Detailed Forecast

Tonight
Mostly clear, with a low around 43. Northeast wind around 6 mph.
Friday
Sunny, with a high near 49. North northeast wind 6 to 8 mph.
Friday Night
Clear, with a low around 38. East northeast wind around 8 mph.
Saturday
Sunny, with a high near 52. East wind around 9 mph.
Saturday Night
Mostly clear, with a low around 39. East wind around 6 mph.
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
Mostly cloudy, with a low around 39.
Tuesday
A slight chance of rain after 4pm. Snow level 4800 feet. Partly sunny, with a high near 52.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 44.
Wednesday
A chance of rain. Mostly cloudy, with a high near 50.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 44.
Thursday
A chance of rain. Partly sunny, with a high near 54.
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ABOUT THIS FORECAST

 
Point Forecast:
14 Miles SE Agness OR
 42.42°N 123.87°W (Elev. 2461 ft)
3:41 pm PST Jan 22, 2026
7pm PST Jan 22, 2026-6pm PST Jan 29, 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