Powerful Winter Storm from the Upper Midwest into the Northeast; Severe Thunderstorms in the Midwest and Ohio Valley

A rapidly-intensifying storm is expected to bring heavy snow, blizzard conditions, and icing from the Upper Midwest through the Great Lakes and Northeast. Scattered severe thunderstorms may produce severe/damaging wind gusts and a couple of tornadoes across parts of the Midwest and lower Ohio Valley through the evening. Arctic air will expand across the central and southern U.S.. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

40°F

4°C

Humidity 75%
Wind Speed NNE 11 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Wind Chill33°F (1°C)
Last update 28 Dec 10:52 AM PST
Extended Forecast for

16 Miles SE Agness OR

  • Today

    Today: Sunny, with a high near 44. East wind around 7 mph.

    High: 44 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 38. East wind around 8 mph.

    Low: 38 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 50. East wind around 7 mph.

    High: 50 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39. East wind around 7 mph.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 53. East southeast wind 3 to 6 mph.

    High: 53 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • New Year's Day

    New Year's Day: A chance of rain.  Mostly cloudy, with a high near 49.

    High: 49 °F

    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 44. East wind around 7 mph.
Tonight
Partly cloudy, with a low around 38. East wind around 8 mph.
Monday
Sunny, with a high near 50. East wind around 7 mph.
Monday Night
Mostly clear, with a low around 39. East wind around 7 mph.
Tuesday
Sunny, with a high near 53. East southeast wind 3 to 6 mph.
Tuesday Night
Mostly clear, with a low around 39.
Wednesday
Partly sunny, with a high near 52.
Wednesday Night
Mostly cloudy, with a low around 39.
New Year's Day
A chance of rain. Mostly cloudy, with a high near 49.
Thursday Night
Rain likely. Snow level 5600 feet. Mostly cloudy, with a low around 41.
Friday
Rain, possibly mixed with snow. Snow level 4600 feet. Mostly cloudy, with a high near 45.
Friday Night
Rain and snow likely. Snow level 3900 feet. Mostly cloudy, with a low around 37.
Saturday
A chance of rain and snow. Snow level 3700 feet. Mostly cloudy, with a high near 44.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SE Agness OR
 42.4°N 123.83°W (Elev. 2582 ft)
9:41 am PST Dec 28, 2025
11am PST Dec 28, 2025-6pm PST Jan 3, 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