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

Ottumwa Regional Airport (KOTM)

Lat: 41.1°NLon: 92.44°WElev: 830ft.

Fair

35°F

2°C

Humidity 50%
Wind Speed NE 17 mph
Barometer 30.19 in (1023.1 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill25°F (-4°C)
Last update 28 Feb 5:53 pm CST
Extended Forecast for

Ottumwa IA

  • Tonight

    Tonight: Mostly clear, with a low around 21. North northeast wind 8 to 14 mph, with gusts as high as 18 mph.

    Low: 21 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly cloudy, with a high near 37. East northeast wind around 9 mph.

    High: 37 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A 30 percent chance of snow. Mostly cloudy, with a low around 26. East wind around 7 mph. Little or no snow accumulation expected.

    Low: 26 °F

    Chance Snow

  • Monday

    Monday: A 20 percent chance of rain after noon. Mostly cloudy, with a high near 44. Southeast wind 7 to 10 mph, with gusts as high as 18 mph.

    High: 44 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Monday Night

    Monday Night: Rain, mainly after midnight. Low around 35. Southeast wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 35 °F

    Chance Rain
    then Rain

  • Tuesday

    Tuesday: Rain likely, with thunderstorms also possible after noon. Cloudy, with a high near 50. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 50 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of rain and thunderstorms. Mostly cloudy, with a high near 57.

    High: 57 °F

    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain

Detailed Forecast

Tonight
Mostly clear, with a low around 21. North northeast wind 8 to 14 mph, with gusts as high as 18 mph.
Sunday
Mostly cloudy, with a high near 37. East northeast wind around 9 mph.
Sunday Night
A 30 percent chance of snow. Mostly cloudy, with a low around 26. East wind around 7 mph. Little or no snow accumulation expected.
Monday
A 20 percent chance of rain after noon. Mostly cloudy, with a high near 44. Southeast wind 7 to 10 mph, with gusts as high as 18 mph.
Monday Night
Rain, mainly after midnight. Low around 35. Southeast wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Rain likely, with thunderstorms also possible after noon. Cloudy, with a high near 50. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Mostly cloudy, with a low around 39.
Wednesday
A 20 percent chance of rain and thunderstorms. Mostly cloudy, with a high near 57.
Wednesday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 40.
Thursday
A 30 percent chance of rain before noon. Mostly cloudy, with a high near 64.
Thursday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 43.
Friday
Rain likely. Mostly cloudy, with a high near 62. Chance of precipitation is 70%.
Friday Night
Rain likely. Mostly cloudy, with a low around 37. Chance of precipitation is 60%.
Saturday
A 40 percent chance of rain. Mostly cloudy, with a high near 58.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ottumwa IA
 41.02°N 92.42°W
Last Update:
5:07 pm CST Feb 28, 2026
Forecast Valid:
6pm CST Feb 28, 2026-6pm CST Mar 7, 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