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

Hazardous Weather Conditions

Current conditions at

Marshall County Airport (KC75)

Lat: 41.02°NLon: 89.39°WElev: 545ft.

Fair

90°F

32°C

Humidity 69%
Wind Speed S 9 mph
Barometer 29.93 in
Dewpoint 78°F (26°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 18 Aug 4:15 pm CDT
Extended Forecast for

Kewanee IL

Severe T-storm Watch until August 18, 06:00pm
Heat Advisory until August 18, 07:00pm
Click here for hazard details and duration
Severe T-storm Watch
Heat Advisory
  •  
    Severe T-storm Watch until August 18, 06:00pm
    Heat Advisory until August 18, 07:00pm

    NOW: Multiple hazards in effect

    Click HERE for Details

  • This Afternoon

    High: 89 °F

    Severe
    Thunderstorms

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly before 5am. Mostly cloudy, with a low around 71. South wind around 5 mph. Chance of precipitation is 40%.

    Low: 71 °F

    Scattered
    T-storms

  • Tuesday

    Tuesday: Partly sunny, with a high near 85. West wind 5 to 10 mph becoming north in the afternoon.

    High: 85 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 67. North wind around 5 mph.

    Low: 67 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms, mainly after 5pm. Some of the storms could be severe. Sunny, with a high near 89. Heat index values as high as 102. South wind around 5 mph. Chance of precipitation is 30%.
Tonight
Scattered showers and thunderstorms, mainly before 5am. Mostly cloudy, with a low around 71. South wind around 5 mph. Chance of precipitation is 40%.
Tuesday
Partly sunny, with a high near 85. West wind 5 to 10 mph becoming north in the afternoon.
Tuesday Night
Partly cloudy, with a low around 67. North wind around 5 mph.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Sunny, with a high near 82.
Thursday Night
Mostly clear, with a low around 61.
Friday
Sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 64.
Saturday
Sunny, with a high near 79.
Saturday Night
Clear, with a low around 56.
Sunday
Sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Kewanee IL
 41.23°N 89.91°W (Elev. 801 ft)
Last Update:
3:46 pm CDT Aug 18, 2025
Forecast Valid:
4pm CDT Aug 18, 2025-6pm CDT Aug 24, 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