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

18°F

-8°C

Humidity 93%
Wind Speed S 0 MPH
Barometer NA
Dewpoint 16°F (-9°C)
Visibility NA
Last update 25 Jan 05:52 AM PST
Extended Forecast for

16 Miles SE Agness OR

  • Today

    Today: Increasing clouds, with a high near 55. East wind 3 to 6 mph.

    High: 55 °F

    Increasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, with a low around 41. South wind around 6 mph.

    Low: 41 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 55. South southwest wind around 7 mph.

    High: 55 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 41. Southeast wind around 6 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 57. East southeast wind 6 to 9 mph becoming south in the afternoon.

    High: 57 °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 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F

    Rain Likely

  • Wednesday

    Wednesday: A 50 percent chance of rain.  Mostly cloudy, with a high near 54.

    High: 54 °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 56.

    High: 56 °F

    Chance Rain

Detailed Forecast

Today
Increasing clouds, with a high near 55. East wind 3 to 6 mph.
Tonight
Mostly cloudy, with a low around 41. South wind around 6 mph.
Monday
Partly sunny, with a high near 55. South southwest wind around 7 mph.
Monday Night
Mostly cloudy, with a low around 41. Southeast wind around 6 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 57. East southeast wind 6 to 9 mph becoming south in the afternoon.
Tuesday Night
Rain likely, mainly after 10pm. Mostly cloudy, with a low around 42. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
A 50 percent chance of rain. Mostly cloudy, with a high near 54.
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 56.
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 59.
Friday Night
A chance of rain. Mostly cloudy, with a low around 46.
Saturday
A chance of rain. Partly sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SE Agness OR
 42.38°N 123.82°W (Elev. 1316 ft)
3:40 am PST Jan 25, 2026
6am 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