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

39°F

4°C

Humidity 82%
Wind Speed E 7 mph
Barometer 30.32 in (1027.2 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 11 Apr 4:53 am CDT
Extended Forecast for

Ottumwa IA

  • Today

    Today: A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 58. Southeast wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 58 °F

    Chance
    Showers

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a temperature falling to near 57 by 8pm, then rising to around 61 during the remainder of the night. South wind 11 to 13 mph, with gusts as high as 24 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F⇑

    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 72. Breezy, with a south southwest wind 14 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Breezy.
    Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 62. South southwest wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Showers
    Likely

  • Monday

    Monday: Partly sunny, with a high near 81. South southwest wind 10 to 15 mph, with gusts as high as 26 mph.

    High: 81 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Slight Chance
    T-storms

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Breezy.

    High: 86 °F

    Breezy.
    Partly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 61. Breezy. Chance of precipitation is 60%.

    Low: 61 °F

    Showers
    Likely and
    Breezy

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 80. Chance of precipitation is 50%.

    High: 80 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 58. Southeast wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 40 percent chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, with a temperature falling to near 57 by 8pm, then rising to around 61 during the remainder of the night. South wind 11 to 13 mph, with gusts as high as 24 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A chance of showers, then showers and possibly a thunderstorm after 1pm. High near 72. Breezy, with a south southwest wind 14 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 62. South southwest wind 10 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday
Partly sunny, with a high near 81. South southwest wind 10 to 15 mph, with gusts as high as 26 mph.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 67.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. Breezy.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 61. Breezy. Chance of precipitation is 60%.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 80. Chance of precipitation is 50%.
Wednesday Night
A 50 percent chance of showers. Partly cloudy, with a low around 58.
Thursday
A 40 percent chance of showers. Mostly sunny, with a high near 80.
Thursday Night
A 30 percent chance of showers. Mostly clear, with a low around 58.
Friday
A 50 percent chance of showers. Mostly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Ottumwa IA
 41.02°N 92.42°W
Last Update:
3:12 am CDT Apr 11, 2026
Forecast Valid:
5am CDT Apr 11, 2026-6pm CDT Apr 17, 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