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

46°F

8°C

Humidity 57%
Wind Speed NE 9 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Wind Chill41°F (5°C)
Last update 28 Dec 01:52 PM PST
Extended Forecast for

8 Miles WNW Illinois Valley OR

Air Stagnation Advisory December 28, 04:00pm until December 31, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  • This Afternoon

    This Afternoon: Sunny, with a high near 41. Northeast wind around 10 mph, with gusts as high as 20 mph.

    High: 41 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a steady temperature around 36. Northeast wind 7 to 10 mph.

    Low: 36 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 48. East northeast wind around 6 mph.

    High: 48 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 37. East northeast wind around 7 mph.

    Low: 37 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 51. Northeast wind around 5 mph becoming light and variable  in the morning.

    High: 51 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 10 percent chance of rain after 4pm.  Snow level 6200 feet. Partly sunny, with a high near 49.

    High: 49 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain, mainly after 10pm.  Mostly cloudy, with a low around 39.

    Low: 39 °F

    Chance Rain

  • New Year's Day

    New Year's Day: Rain likely, mainly after 10am.  Mostly cloudy, with a high near 44.

    High: 44 °F

    Rain Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 41. Northeast wind around 10 mph, with gusts as high as 20 mph.
Tonight
Partly cloudy, with a steady temperature around 36. Northeast wind 7 to 10 mph.
Monday
Mostly sunny, with a high near 48. East northeast wind around 6 mph.
Monday Night
Mostly clear, with a low around 37. East northeast wind around 7 mph.
Tuesday
Sunny, with a high near 51. Northeast wind around 5 mph becoming light and variable in the morning.
Tuesday Night
Partly cloudy, with a low around 38.
Wednesday
A 10 percent chance of rain after 4pm. Snow level 6200 feet. Partly sunny, with a high near 49.
Wednesday Night
A chance of rain, mainly after 10pm. Mostly cloudy, with a low around 39.
New Year's Day
Rain likely, mainly after 10am. Mostly cloudy, with a high near 44.
Thursday Night
Rain likely. Mostly cloudy, with a low around 39.
Friday
Rain likely, possibly mixed with snow. Snow level 5600 feet. Mostly cloudy, with a high near 44.
Friday Night
Rain likely, possibly mixed with snow. Snow level 4900 feet. Mostly cloudy, with a low around 36.
Saturday
Rain likely, possibly mixed with snow. Snow level 4300 feet. Mostly cloudy, with a high near 41.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles WNW Illinois Valley OR
 42.14°N 123.81°W (Elev. 3209 ft)
2:36 pm PST Dec 28, 2025
2pm 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