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

73°F

23°C

Humidity 87%
Wind Speed S 5 mph
Barometer 29.94 in (1013.6 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 2 Sep 2:56 am CDT
Extended Forecast for

De Witt IA

Heat Advisory September 2, 03:53am until September 3, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 2, 03:53am until September 3, 07:00pm

    NOW until 7:00pm Thu

    Heat Advisory

  • Overnight

    Low: 73 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 93. Heat index values as high as 102. Southwest wind 5 to 10 mph.

    High: 93 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 74. Southwest wind around 5 mph.

    Low: 74 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms, mainly before 2pm. Mostly sunny, with a high near 91. Heat index values as high as 101. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 91 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly clear, with a low around 73. Chance of precipitation is 30%.

    Low: 73 °F

    Mostly Clear
    then Chance
    T-storms

  • Friday

    Friday: A chance of thunderstorms before 7am. Mostly sunny, with a high near 91. Chance of precipitation is 30%.

    High: 91 °F

    Chance
    T-storms then
    Mostly Sunny

  • Friday Night

    Friday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy
    then Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

Detailed Forecast

Overnight
Partly cloudy, with a low around 73. Southwest wind around 5 mph.
Wednesday
Mostly sunny, with a high near 93. Heat index values as high as 102. Southwest wind 5 to 10 mph.
Wednesday Night
Mostly clear, with a low around 74. Southwest wind around 5 mph.
Thursday
A 30 percent chance of showers and thunderstorms, mainly before 2pm. Mostly sunny, with a high near 91. Heat index values as high as 101. Calm wind becoming southwest around 5 mph in the afternoon.
Thursday Night
A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly clear, with a low around 73. Chance of precipitation is 30%.
Friday
A chance of thunderstorms before 7am. Mostly sunny, with a high near 91. Chance of precipitation is 30%.
Friday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71.
Saturday
Mostly sunny, with a high near 89.
Saturday Night
Partly cloudy, with a low around 69.
Sunday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 86.
Sunday Night
Partly cloudy, with a low around 67.
Labor Day
Mostly sunny, with a high near 84.
Monday Night
Mostly cloudy, with a low around 65.
Tuesday
Partly sunny, with a high near 83.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
De Witt IA
 41.82°N 90.55°W (Elev. 653 ft)
Last Update:
2:36 am CDT Sep 2, 2026
Forecast Valid:
3am CDT Sep 2, 2026-6pm CDT Sep 8, 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