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

Hazardous Weather Conditions

Current conditions at

Ottumwa Regional Airport (KOTM)

Lat: 41.1°NLon: 92.44°WElev: 830ft.

Fair

89°F

32°C

Humidity 63%
Wind Speed S 5 mph
Barometer 29.93 in (1012.6 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 17 Aug 6:53 pm CDT
Extended Forecast for

What Cheer IA

Heat Advisory August 17, 07:00pm until August 17, 08:00pm
Click here for hazard details and duration
...
  •  
    Heat Advisory August 17, 07:00pm until August 17, 08:00pm

    NOW until 8:00pm Sun

    Heat Advisory

  • Tonight

    Low: 73 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Monday

    Monday: Scattered showers and thunderstorms before 11am, then isolated showers and thunderstorms after 3pm. Partly sunny, with a high near 90. Heat index values as high as 101. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 30%.

    High: 90 °F

    Scattered
    T-storms

  • Monday Night

    Monday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 72. Southwest wind around 5 mph becoming northwest in the evening. Chance of precipitation is 40%.

    Low: 72 °F

    Scattered
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 86. North wind around 5 mph.

    High: 86 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 80.

    High: 80 °F

    Sunny

Detailed Forecast

Tonight
A 10 percent chance of showers and thunderstorms after 5am. Mostly clear, with a low around 73. South wind around 5 mph.
Monday
Scattered showers and thunderstorms before 11am, then isolated showers and thunderstorms after 3pm. Partly sunny, with a high near 90. Heat index values as high as 101. Southeast wind 5 to 10 mph becoming southwest in the afternoon. Chance of precipitation is 30%.
Monday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 72. Southwest wind around 5 mph becoming northwest in the evening. Chance of precipitation is 40%.
Tuesday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 86. North wind around 5 mph.
Tuesday Night
Mostly clear, with a low around 64.
Wednesday
Sunny, with a high near 80.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Sunny, with a high near 80.
Thursday Night
Clear, with a low around 61.
Friday
Sunny, with a high near 83.
Friday Night
Partly cloudy, with a low around 62.
Saturday
Sunny, with a high near 78.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
What Cheer IA
 41.4°N 92.35°W (Elev. 778 ft)
Last Update:
5:46 pm CDT Aug 17, 2025
Forecast Valid:
7pm CDT Aug 17, 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