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

Hazardous Weather Conditions

Current conditions at

Clinton Municipal Airport (KCWI)

Lat: 41.83°NLon: 90.33°WElev: 696ft.

Fair

90°F

32°C

Humidity 73%
Wind Speed S 12 mph
Barometer 30.01 in (1016.0 mb)
Dewpoint 80°F (27°C)
Visibility 10.00 mi
Heat Index108°F (42°C)
Last update 16 Aug 2:56 pm CDT
Extended Forecast for

6 Miles SE Thomson IL

Heat Advisory August 16, 03:40pm until August 16, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 16, 03:40pm until August 16, 08:00pm

    NOW until 8:00pm Sat

    Heat Advisory

  • This Afternoon

    High: 90 °F

    Partly Sunny

  • Tonight

    Tonight: Isolated showers and thunderstorms after 5am. Mostly cloudy, with a low around 72. Light and variable wind becoming east 10 to 15 mph after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 10%.

    Low: 72 °F

    Mostly Cloudy
    then Isolated
    T-storms

  • Sunday

    Sunday: Isolated showers and thunderstorms before 9am. Partly sunny, with a high near 86. Southeast wind 5 to 10 mph becoming east in the morning. Chance of precipitation is 20%.

    High: 86 °F

    Isolated
    T-storms then
    Partly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Partly cloudy, with a low around 71. Southeast wind around 5 mph. Chance of precipitation is 20%.

    Low: 71 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Monday

    Monday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy
    then Chance
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 88.

    High: 88 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 64.

    Low: 64 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Partly sunny, with a high near 90. Heat index values as high as 102. South wind around 10 mph.
Tonight
Isolated showers and thunderstorms after 5am. Mostly cloudy, with a low around 72. Light and variable wind becoming east 10 to 15 mph after midnight. Winds could gust as high as 20 mph. Chance of precipitation is 10%.
Sunday
Isolated showers and thunderstorms before 9am. Partly sunny, with a high near 86. Southeast wind 5 to 10 mph becoming east in the morning. Chance of precipitation is 20%.
Sunday Night
A slight chance of showers and thunderstorms between 1am and 4am, then a slight chance of showers after 4am. Partly cloudy, with a low around 71. Southeast wind around 5 mph. Chance of precipitation is 20%.
Monday
Mostly sunny, with a high near 92.
Monday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.
Tuesday
Mostly sunny, with a high near 88.
Tuesday Night
Partly cloudy, with a low around 64.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Sunny, with a high near 83.
Thursday Night
Mostly clear, with a low around 59.
Friday
Sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SE Thomson IL
 41.89°N 90.02°W (Elev. 699 ft)
Last Update:
3:01 pm CDT Aug 16, 2025
Forecast Valid:
3pm CDT Aug 16, 2025-6pm CDT Aug 22, 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