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

Above Average Temperatures in the West; Winter Weather Returns to the Upper Midwest and Great Lakes

Well above average temperatures will continue across the West this week, potentially breaking some daily high temperature records. A storm system dropping south out of Canada will bring a wintry mix to the Upper Midwest and Great Lakes Tuesday, pushing into the Central Appalachians and interior Northeast on Wednesday. Read More >

Current conditions at

Clinton Municipal Airport (KCWI)

Lat: 41.83°NLon: 90.33°WElev: 696ft.

Fair

31°F

-1°C

Humidity 89%
Wind Speed SW 9 mph
Barometer 30.01 in (1017.6 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 12 Jan 8:56 pm CST
Extended Forecast for

Thomson IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 34. South wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 34 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 48. West wind 10 to 15 mph, with gusts as high as 30 mph.

    High: 48 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 27. Blustery, with a west wind 15 to 20 mph, with gusts as high as 25 mph.

    Low: 27 °F

    Mostly Cloudy
    then Mostly
    Cloudy and
    Blustery

  • Wednesday

    Wednesday: Partly sunny, with a high near 28. Blustery, with a north wind around 20 mph, with gusts as high as 30 mph.

    High: 28 °F

    Partly Sunny
    and Blustery

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 13. Blustery.

    Low: 13 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 27.

    High: 27 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.

    Low: 22 °F

    Snow Likely

  • Friday

    Friday: A 50 percent chance of snow. Mostly cloudy, with a high near 34.

    High: 34 °F

    Chance Snow

  • Friday Night

    Friday Night: A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 12.

    Low: 12 °F

    Chance Snow
    then Mostly
    Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 34. South wind 5 to 10 mph, with gusts as high as 20 mph.
Tuesday
Partly sunny, with a high near 48. West wind 10 to 15 mph, with gusts as high as 30 mph.
Tuesday Night
Mostly cloudy, with a low around 27. Blustery, with a west wind 15 to 20 mph, with gusts as high as 25 mph.
Wednesday
Partly sunny, with a high near 28. Blustery, with a north wind around 20 mph, with gusts as high as 30 mph.
Wednesday Night
Mostly clear, with a low around 13. Blustery.
Thursday
Mostly sunny, with a high near 27.
Thursday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 22. Chance of precipitation is 60%.
Friday
A 50 percent chance of snow. Mostly cloudy, with a high near 34.
Friday Night
A 30 percent chance of snow before midnight. Mostly cloudy, with a low around 12.
Saturday
A 30 percent chance of snow after noon. Mostly cloudy, with a high near 17.
Saturday Night
Mostly cloudy, with a low around 4.
Sunday
Partly sunny, with a high near 16.
Sunday Night
Partly cloudy, with a low around 5.
M.L.King Day
Partly sunny, with a high near 21.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Thomson IL
 41.96°N 90.1°W (Elev. 607 ft)
Last Update:
7:01 pm CST Jan 12, 2026
Forecast Valid:
9pm CST Jan 12, 2026-6pm CST Jan 19, 2026
 
Forecast Discussion
 
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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