Significant and Catastrophic Flooding in the Pacific Northwest; Very Cold Temperatures in the Northern Plains

The atmospheric river over the Pacific Northwest will begin to subside today, but lingering rainfall will exacerbate ongoing catastrophic major river flooding, and landslides will continue across portions of western Washington and northwest Oregon for several days. Arctic air will plummet southward into the Northern Plains today, bringing cold air in the single digits to the region by Friday. Read More >

Current conditions at

University of Illinois - Willard (KCMI)

Lat: 40.03°NLon: 88.28°WElev: 741ft.

Overcast

28°F

-2°C

Humidity 69%
Wind Speed Calm
Barometer 29.99 in (1016.3 mb)
Dewpoint 19°F (-7°C)
Visibility 10.00 mi
Last update 11 Dec 1:53 pm CST
Extended Forecast for

3 Miles SW Savoy IL

Winter Weather Advisory December 11, 03:00pm until December 12, 06:00am
Click here for hazard details and duration
Winter Weather Advisory
  • This Afternoon

    This Afternoon: A 50 percent chance of snow after 3pm.  Cloudy, with a high near 29. Southwest wind around 5 mph becoming south southeast.

    High: 29 °F

    Chance Snow

  • Tonight

    Tonight: Snow, mainly before 3am. The snow could be heavy at times.  Low around 24. Southeast wind 5 to 9 mph becoming northeast after midnight. Winds could gust as high as 15 mph.  Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    Low: 24 °F

    Heavy Snow
    then Snow
    Likely

  • Friday

    Friday: Mostly cloudy, with a high near 32. Northeast wind 6 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 17 mph.

    High: 32 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Cloudy, with a low around 11. Wind chill values between zero and 5. West northwest wind around 10 mph, with gusts as high as 18 mph.

    Low: 11 °F

    Cloudy

  • Saturday

    Saturday: Snow.  High near 16. Northwest wind around 10 mph, with gusts as high as 15 mph.  Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.

    High: 16 °F

    Snow

  • Saturday Night

    Saturday Night: Cloudy during the early evening, then gradual clearing, with a low around -7. Northwest wind 10 to 13 mph, with gusts as high as 17 mph.

    Low: -7 °F

    Gradual
    Clearing

  • Sunday

    Sunday: Sunny and cold, with a high near 4. Northwest wind 6 to 11 mph, with gusts as high as 17 mph.

    High: 4 °F

    Cold

  • Sunday Night

    Sunday Night: Mostly clear, with a low around -9.

    Low: -9 °F

    Mostly Clear

  • Monday

    Monday: Mostly sunny, with a high near 23.

    High: 23 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A 50 percent chance of snow after 3pm. Cloudy, with a high near 29. Southwest wind around 5 mph becoming south southeast.
Tonight
Snow, mainly before 3am. The snow could be heavy at times. Low around 24. Southeast wind 5 to 9 mph becoming northeast after midnight. Winds could gust as high as 15 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Friday
Mostly cloudy, with a high near 32. Northeast wind 6 to 10 mph becoming west northwest in the afternoon. Winds could gust as high as 17 mph.
Friday Night
Cloudy, with a low around 11. Wind chill values between zero and 5. West northwest wind around 10 mph, with gusts as high as 18 mph.
Saturday
Snow. High near 16. Northwest wind around 10 mph, with gusts as high as 15 mph. Chance of precipitation is 90%. New snow accumulation of 3 to 5 inches possible.
Saturday Night
Cloudy during the early evening, then gradual clearing, with a low around -7. Northwest wind 10 to 13 mph, with gusts as high as 17 mph.
Sunday
Sunny and cold, with a high near 4. Northwest wind 6 to 11 mph, with gusts as high as 17 mph.
Sunday Night
Mostly clear, with a low around -9.
Monday
Mostly sunny, with a high near 23.
Monday Night
Partly cloudy, with a low around 16.
Tuesday
Mostly sunny, with a high near 35.
Tuesday Night
Mostly cloudy, with a low around 28.
Wednesday
Mostly cloudy, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SW Savoy IL
 40.04°N 88.3°W (Elev. 709 ft)
1:01 pm CST Dec 11, 2025
2pm CST Dec 11, 2025-6pm CST Dec 17, 2025
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database