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

Tracking Weekend Storm Impacts

A storm and trailing cold front will continue to slowly move through the Gulf Coast and Southeast U.S. through this weekend with widespread rain showers and isolated thunderstorms. A fast-moving clipper storm may bring several inches of snow to the north-central Plains, Midwest, eastern Great Lakes, and Northeast regions this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Clinton Municipal Airport (KCWI)

Lat: 41.83°NLon: 90.33°WElev: 696ft.

Overcast

29°F

-2°C

Humidity 72%
Wind Speed Calm
Barometer 29.93 in (1014.9 mb)
Dewpoint 21°F (-6°C)
Visibility 10.00 mi
Last update 6 Dec 1:56 pm CST
Extended Forecast for

Thomson IL

Winter Storm Warning December 6, 09:00pm until December 7, 06:00am
Click here for hazard details and duration
Winter Storm Warning

  • This Afternoon

    This Afternoon: Cloudy, with a high near 29. Calm wind becoming southeast around 5 mph.

    High: 29 °F

    Cloudy

  • Tonight

    Tonight: Snow, mainly after 7pm. The snow could be heavy at times. Low around 20. East wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    Low: 20 °F

    Heavy Snow

  • Sunday

    Sunday: A 30 percent chance of snow before 7am. Mostly cloudy, then gradually becoming sunny, with a temperature falling to around 14 by 5pm. North wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 22 °F⇓

    Chance Snow
    then Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 1. Wind chill values as low as -10. North wind around 5 mph becoming calm after midnight.

    Low: 1 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 23.

    High: 23 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 38.

    High: 38 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before midnight. Mostly cloudy, with a low around 27. Chance of precipitation is 70%.

    Low: 27 °F

    Rain Likely

  • Wednesday

    Wednesday: A 30 percent chance of snow. Mostly cloudy, with a high near 32.

    High: 32 °F

    Chance Snow

Detailed Forecast

This Afternoon
Cloudy, with a high near 29. Calm wind becoming southeast around 5 mph.
Tonight
Snow, mainly after 7pm. The snow could be heavy at times. Low around 20. East wind 5 to 10 mph becoming north after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Sunday
A 30 percent chance of snow before 7am. Mostly cloudy, then gradually becoming sunny, with a temperature falling to around 14 by 5pm. North wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
Mostly cloudy, with a low around 1. Wind chill values as low as -10. North wind around 5 mph becoming calm after midnight.
Monday
Partly sunny, with a high near 23.
Monday Night
Mostly cloudy, with a low around 14.
Tuesday
Mostly cloudy, with a high near 38.
Tuesday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 27. Chance of precipitation is 70%.
Wednesday
A 30 percent chance of snow. Mostly cloudy, with a high near 32.
Wednesday Night
Mostly cloudy, with a low around 12.
Thursday
A 30 percent chance of snow. Mostly cloudy, with a high near 23.
Thursday Night
Mostly cloudy, with a low around 8.
Friday
Partly sunny, with a high near 17.
Basemap Options
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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:
1:52 pm CST Dec 6, 2025
Forecast Valid:
2pm CST Dec 6, 2025-6pm CST Dec 12, 2025
 
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