Significant Winter Storm to Bring Heavy Snow and Ice Impacts; Dangerously Cold Temperatures Expands Across the East; Severe Storm Threat in the Gulf States Sunday

A significant winter storm is underway, bringing widespread heavy snow, sleet, and freezing rain from the Southern Rockies to New England through Monday. Extremely cold air will follow, prolonging dangerous travel and infrastructure impacts into next week. Severe thunderstorms may produce damaging gusts and tornadoes across the eastern Gulf Coast states Sunday morning and afternoon. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

19°F

-7°C

Humidity 93%
Wind Speed S 0 MPH
Barometer NA
Dewpoint 17°F (-8°C)
Visibility NA
Last update 25 Jan 04:52 AM PST
Extended Forecast for

14 Miles SE Agness OR

  • Today

    Today: Increasing clouds, with a high near 52. East southeast wind around 6 mph becoming calm  in the morning.

    High: 52 °F

    Increasing
    Clouds

  • Tonight

    Tonight: 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 53. South southwest wind 5 to 7 mph.

    High: 53 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 41. Southeast wind 3 to 5 mph.

    Low: 41 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain after 4pm.  Snow level 4100 feet rising to 5000 feet in the afternoon. Partly sunny, with a high near 53. East southeast wind 6 to 11 mph becoming south in the afternoon.

    High: 53 °F

    Partly Sunny
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: Rain likely, mainly after 10pm.  Mostly cloudy, with a low around 42. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Rain Likely

  • Wednesday

    Wednesday: A 50 percent chance of rain.  Snow level 5500 feet. Mostly cloudy, with a high near 50.

    High: 50 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain.  Mostly cloudy, with a low around 44.

    Low: 44 °F

    Chance Rain

  • Thursday

    Thursday: A chance of rain, mainly before 10am.  Partly sunny, with a high near 54.

    High: 54 °F

    Chance Rain

Detailed Forecast

Today
Increasing clouds, with a high near 52. East southeast wind around 6 mph becoming calm in the morning.
Tonight
Mostly cloudy, with a low around 43. South wind around 6 mph.
Monday
Partly sunny, with a high near 53. South southwest wind 5 to 7 mph.
Monday Night
Mostly cloudy, with a low around 41. Southeast wind 3 to 5 mph.
Tuesday
A 30 percent chance of rain after 4pm. Snow level 4100 feet rising to 5000 feet in the afternoon. Partly sunny, with a high near 53. East southeast wind 6 to 11 mph becoming south in the afternoon.
Tuesday Night
Rain likely, mainly after 10pm. Mostly cloudy, with a low around 42. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A 50 percent chance of rain. Snow level 5500 feet. 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, mainly before 10am. Partly sunny, with a high near 54.
Thursday Night
A slight chance of rain. Mostly cloudy, with a low around 46.
Friday
A chance of rain. Mostly cloudy, with a high near 56.
Friday Night
A chance of rain. Mostly cloudy, with a low around 47.
Saturday
A chance of rain. Mostly cloudy, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
14 Miles SE Agness OR
 42.42°N 123.87°W (Elev. 2461 ft)
3:40 am PST Jan 25, 2026
5am PST Jan 25, 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