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

27°F

-3°C

Humidity 98%
Wind Speed W 0 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Last update 23 Jan 03:52 AM PST
Extended Forecast for

17 Miles SSE Agness OR

Air Stagnation Advisory January 23, 04:35am until January 23, 04:00pm
Freezing Fog Advisory January 23, 04:35am until January 23, 12:00pm
Click here for hazard details and duration
Air Stagnation Advisory
Freezing Fog Advisory
  •  
    Air Stagnation Advisory January 23, 04:35am until January 23, 04:00pm
    Freezing Fog Advisory January 23, 04:35am 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 37. East northeast wind 5 to 10 mph increasing to 11 to 16 mph in the evening. Winds could gust as high as 24 mph.

    Low: 37 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 53. East northeast wind 10 to 15 mph, with gusts as high as 23 mph.

    High: 53 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 42. East wind around 14 mph, with gusts as high as 21 mph.

    Low: 42 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 54. East wind 7 to 11 mph becoming south in the afternoon.

    High: 54 °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 49.

    High: 49 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 37.

    Low: 37 °F

    Partly Cloudy

Detailed Forecast

Today
Sunny, with a high near 51. Northeast wind 9 to 15 mph, with gusts as high as 23 mph.
Tonight
Clear, with a low around 37. East northeast wind 5 to 10 mph increasing to 11 to 16 mph in the evening. Winds could gust as high as 24 mph.
Saturday
Sunny, with a high near 53. East northeast wind 10 to 15 mph, with gusts as high as 23 mph.
Saturday Night
Mostly clear, with a low around 42. East wind around 14 mph, with gusts as high as 21 mph.
Sunday
Partly sunny, with a high near 54. East wind 7 to 11 mph becoming south in the afternoon.
Sunday Night
Mostly cloudy, with a low around 42.
Monday
Partly sunny, with a high near 49.
Monday Night
Partly cloudy, with a low around 37.
Tuesday
Partly sunny, with a high near 53.
Tuesday Night
A slight chance of rain after 10pm. Mostly cloudy, with a low around 41.
Wednesday
A slight chance of rain. Snow level 5400 feet. Mostly cloudy, with a high near 51.
Wednesday Night
A slight chance of rain. Snow level 5400 feet. Mostly cloudy, with a low around 39.
Thursday
A slight chance of rain. Partly sunny, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles SSE Agness OR
 42.32°N 123.96°W (Elev. 2408 ft)
3:56 am PST Jan 23, 2026
4am 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