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

29°F

-2°C

Humidity 98%
Wind Speed SW 0 MPH
Barometer NA
Dewpoint 28°F (-2°C)
Visibility NA
Last update 23 Jan 04:52 AM PST
Extended Forecast for

16 Miles SE Agness OR

Air Stagnation Advisory January 23, 05:57am until January 23, 04:00pm
Freezing Fog Advisory January 23, 05:57am until January 23, 12:00pm
Click here for hazard details and duration
Air Stagnation Advisory
Freezing Fog Advisory
  •  
    Air Stagnation Advisory January 23, 05:57am until January 23, 04:00pm
    Freezing Fog Advisory January 23, 05:57am until January 23, 12:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Today

    High: 51 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 36. East northeast wind 6 to 13 mph, with gusts as high as 20 mph.

    Low: 36 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 51. East wind 9 to 14 mph, with gusts as high as 21 mph.

    High: 51 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 40. East wind around 8 mph.

    Low: 40 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 50. South southeast wind 6 to 9 mph.

    High: 50 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

Detailed Forecast

Today
Sunny, with a high near 51. East wind 3 to 6 mph.
Tonight
Clear, with a low around 36. East northeast wind 6 to 13 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 51. East wind 9 to 14 mph, with gusts as high as 21 mph.
Saturday Night
Mostly clear, with a low around 40. East wind around 8 mph.
Sunday
Partly sunny, with a high near 50. South southeast wind 6 to 9 mph.
Sunday Night
Mostly cloudy, with a low around 42.
Monday
Partly sunny, with a high near 51.
Monday Night
Partly cloudy, with a low around 38.
Tuesday
Partly sunny, with a high near 54.
Tuesday Night
A slight chance of rain after 10pm. Snow level 5700 feet. Mostly cloudy, with a low around 41.
Wednesday
A slight chance of rain. Snow level 5400 feet. Mostly cloudy, with a high near 53.
Wednesday Night
A slight chance of rain. Snow level 5500 feet. Mostly cloudy, with a low around 40.
Thursday
A slight chance of rain. Partly sunny, with a high near 52.
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SE Agness OR
 42.4°N 123.83°W (Elev. 2582 ft)
3:56 am PST Jan 23, 2026
5am PST Jan 23, 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