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

93°F

34°C

Humidity 54%
Wind Speed S 7 mph
Barometer 29.99 in (1014.5 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 17 Aug 2:53 pm CDT
Extended Forecast for

2 Miles SW What Cheer IA

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

    NOW until 8:00pm Sun

    Heat Advisory

  • This Afternoon

    High: 93 °F

    Sunny

  • Tonight

    Tonight: Isolated showers and thunderstorms after 5am. Mostly clear, with a low around 73. South wind around 5 mph becoming calm. Chance of precipitation is 10%.

    Low: 73 °F

    Mostly Clear
    then Isolated
    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. Partly cloudy, with a low around 71. Southwest wind around 5 mph. Chance of precipitation is 50%.

    Low: 71 °F

    Scattered
    T-storms

  • Tuesday

    Tuesday: Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 66.

    Low: 66 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny

  • Wednesday Night

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

    Low: 62 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Sunny, with a high near 93. Heat index values as high as 103. South wind around 10 mph.
Tonight
Isolated showers and thunderstorms after 5am. Mostly clear, with a low around 73. South wind around 5 mph becoming calm. Chance of precipitation is 10%.
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. Partly cloudy, with a low around 71. Southwest wind around 5 mph. Chance of precipitation is 50%.
Tuesday
Mostly sunny, with a high near 87.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
Mostly sunny, with a high near 80.
Wednesday Night
Mostly clear, with a low around 62.
Thursday
Sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 62.
Friday
Sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 63.
Saturday
Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SW What Cheer IA
 41.37°N 92.38°W (Elev. 801 ft)
Last Update:
2:31 pm CDT Aug 17, 2025
Forecast Valid:
3pm CDT Aug 17, 2025-6pm CDT Aug 23, 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