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

36°F

2°C

Humidity 65%
Wind Speed NW 0 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Last update 24 Jan 05:52 PM PST
Extended Forecast for

14 Miles SE Agness OR

  • Tonight

    Tonight: Mostly clear, with a low around 39. East southeast wind around 7 mph.

    Low: 39 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 52. East southeast wind around 6 mph becoming light and variable  in the afternoon.

    High: 52 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 43. South wind around 6 mph.

    Low: 43 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 52. South southwest wind around 6 mph.

    High: 52 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 40. Southeast wind 3 to 5 mph.

    Low: 40 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 53.

    High: 53 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain.  Snow level 5500 feet. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance Rain

  • Wednesday

    Wednesday: A chance of rain.  Snow level 5300 feet. Mostly cloudy, with a high near 50.

    High: 50 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain, mainly before 4am.  Snow level 5500 feet. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 39. East southeast wind around 7 mph.
Sunday
Increasing clouds, with a high near 52. East southeast wind around 6 mph becoming light and variable in the afternoon.
Sunday Night
Mostly cloudy, with a low around 43. South wind around 6 mph.
Monday
Partly sunny, with a high near 52. South southwest wind around 6 mph.
Monday Night
Mostly cloudy, with a low around 40. Southeast wind 3 to 5 mph.
Tuesday
Partly sunny, with a high near 53.
Tuesday Night
A 50 percent chance of rain. Snow level 5500 feet. Mostly cloudy, with a low around 42.
Wednesday
A chance of rain. Snow level 5300 feet. Mostly cloudy, with a high near 50.
Wednesday Night
A chance of rain, mainly before 4am. Snow level 5500 feet. Mostly cloudy, with a low around 42.
Thursday
A slight chance of rain before 10am. Partly sunny, with a high near 55.
Thursday Night
A slight chance of rain. Mostly cloudy, with a low around 45.
Friday
A chance of rain. Mostly cloudy, with a high near 56.
Friday Night
A chance of rain. Mostly cloudy, with a low around 45.
Saturday
A chance of rain. Mostly cloudy, with a high near 55.
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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 24, 2026
6pm PST Jan 24, 2026-6pm PST Jan 31, 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