National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Blizzard Conditions Are Forecast Across Parts of the Northern Plains and Upper Great Lakes

In the north-central U.S., a strong storm will continue to bring heavy snow and gusty to high winds over parts of the northern Plains and Upper Midwest tonight before moving across the Great Lakes with heavy lake effect snow Wednesday into Thanksgiving Day. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

42°F

6°C

Humidity 96%
Wind Speed SSE 1 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Last update 25 Nov 08:52 PM PST
Extended Forecast for

8 Miles WNW Illinois Valley OR

  • Tonight

    Tonight: A slight chance of rain between midnight and 1am. Mostly cloudy, with a low around 40. Southwest wind 6 to 8 mph. Chance of precipitation is 20%.

    Low: 40 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday

    Wednesday: Mostly sunny, with a high near 51. South wind around 5 mph.

    High: 51 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain after 10pm. Snow level 6000 feet. Increasing clouds, with a low around 39. Southwest wind 6 to 9 mph.

    Low: 39 °F

    Slight Chance
    Rain

  • Thanksgiving Day

    Thanksgiving Day: Rain likely. Mostly cloudy, with a high near 46. Southwest wind 10 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 46 °F

    Rain Likely

  • Thursday Night

    Thursday Night: A 50 percent chance of rain. Snow level 5900 feet. Mostly cloudy, with a low around 37. West southwest wind 6 to 8 mph becoming north northeast after midnight.

    Low: 37 °F

    Chance Rain

  • Friday

    Friday: A 30 percent chance of rain before 10am. Snow level 5700 feet. Mostly sunny, with a high near 46.

    High: 46 °F

    Chance Rain
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of rain. Snow level 5100 feet. Mostly sunny, with a high near 45.

    High: 45 °F

    Slight Chance
    Rain

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

Detailed Forecast

Tonight
A slight chance of rain between midnight and 1am. Mostly cloudy, with a low around 40. Southwest wind 6 to 8 mph. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 51. South wind around 5 mph.
Wednesday Night
A 20 percent chance of rain after 10pm. Snow level 6000 feet. Increasing clouds, with a low around 39. Southwest wind 6 to 9 mph.
Thanksgiving Day
Rain likely. Mostly cloudy, with a high near 46. Southwest wind 10 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 50 percent chance of rain. Snow level 5900 feet. Mostly cloudy, with a low around 37. West southwest wind 6 to 8 mph becoming north northeast after midnight.
Friday
A 30 percent chance of rain before 10am. Snow level 5700 feet. Mostly sunny, with a high near 46.
Friday Night
Partly cloudy, with a low around 35.
Saturday
A slight chance of rain. Snow level 5100 feet. Mostly sunny, with a high near 45.
Saturday Night
Mostly clear, with a low around 34.
Sunday
Sunny, with a high near 45.
Sunday Night
Mostly clear, with a low around 34.
Monday
Sunny, with a high near 49.
Monday Night
Mostly clear, with a low around 38.
Tuesday
A slight chance of rain. Snow level 6500 feet lowering to 5800 feet in the afternoon . Mostly sunny, with a high near 48.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles WNW Illinois Valley OR
 42.14°N 123.81°W (Elev. 3209 ft)
Last Update:
8:21 pm PST Nov 25, 2025
Forecast Valid:
9pm PST Nov 25, 2025-6pm PST Dec 2, 2025
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation