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

Clinton Municipal Airport (KCWI)

Lat: 41.83°NLon: 90.33°WElev: 696ft.

Fair

70°F

21°C

Humidity 79%
Wind Speed Calm
Barometer 30.12 in (1019.7 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 28 Aug 8:56 pm CDT
Extended Forecast for

De Witt IA

  • Tonight

    Tonight: Partly cloudy, with a low around 63. South wind around 5 mph.

    Low: 63 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 81. South wind 5 to 15 mph, with gusts as high as 20 mph.

    High: 81 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly between 4am and 5am. Mostly cloudy, with a low around 70. South wind around 10 mph, with gusts as high as 20 mph.

    Low: 70 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: A 10 percent chance of showers and thunderstorms before 7am. Sunny through mid morning, then becoming partly sunny, with a high near 90. South wind around 10 mph, with gusts as high as 20 mph.

    High: 90 °F

    Slight Chance
    T-storms then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 63. South wind around 5 mph.
Saturday
Mostly cloudy, with a high near 81. South wind 5 to 15 mph, with gusts as high as 20 mph.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly between 4am and 5am. Mostly cloudy, with a low around 70. South wind around 10 mph, with gusts as high as 20 mph.
Sunday
A 10 percent chance of showers and thunderstorms before 7am. Sunny through mid morning, then becoming partly sunny, with a high near 90. South wind around 10 mph, with gusts as high as 20 mph.
Sunday Night
Partly cloudy, with a low around 73.
Monday
Mostly sunny, with a high near 92.
Monday Night
Partly cloudy, with a low around 74.
Tuesday
Mostly sunny, with a high near 92.
Tuesday Night
Partly cloudy, with a low around 73.
Wednesday
Mostly sunny, with a high near 92.
Wednesday Night
Mostly clear, with a low around 72.
Thursday
Mostly sunny, with a high near 90.
Thursday Night
Partly cloudy, with a low around 71.
Friday
Mostly sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
De Witt IA
 41.82°N 90.55°W (Elev. 653 ft)
Last Update:
5:46 pm CDT Aug 28, 2026
Forecast Valid:
9pm CDT Aug 28, 2026-6pm CDT Sep 4, 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