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.

Overcast

73°F

23°C

Humidity 90%
Wind Speed W 7 mph
Barometer 30.02 in (1016.1 mb)
Dewpoint 70°F (21°C)
Visibility 9.00 mi
Last update 4 Aug 8:53 pm CDT
Extended Forecast for

Agency IA

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3am. Low around 66. North northeast wind 5 to 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 66 °F

    Chance
    T-storms then
    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before 9am, then a chance of showers and thunderstorms between 9am and noon, then showers and possibly a thunderstorm after noon. High near 76. North northeast wind around 6 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 76 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms likely before 4am, then a slight chance of showers. Mostly cloudy, with a low around 60. North northeast wind 3 to 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 60 °F

    Showers
    Likely

  • Thursday

    Thursday: Mostly sunny, with a high near 81. Light east northeast wind.

    High: 81 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63. Light east wind.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 66.

    Low: 66 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm. Sunny, with a high near 87.

    High: 87 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear
    then Chance
    T-storms

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 3am. Low around 66. North northeast wind 5 to 7 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday
Showers and possibly a thunderstorm before 9am, then a chance of showers and thunderstorms between 9am and noon, then showers and possibly a thunderstorm after noon. High near 76. North northeast wind around 6 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday Night
Showers and thunderstorms likely before 4am, then a slight chance of showers. Mostly cloudy, with a low around 60. North northeast wind 3 to 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Mostly sunny, with a high near 81. Light east northeast wind.
Thursday Night
Mostly clear, with a low around 63. Light east wind.
Friday
Mostly sunny, with a high near 85.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 66.
Saturday
A 20 percent chance of showers before 1pm. Sunny, with a high near 87.
Saturday Night
A 40 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 69.
Sunday
Mostly sunny, with a high near 88.
Sunday Night
Partly cloudy, with a low around 72.
Monday
Mostly sunny, with a high near 91.
Monday Night
Partly cloudy, with a low around 71.
Tuesday
Mostly sunny, with a high near 86.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Agency IA
 41°N 92.3°W
Last Update:
8:53 pm CDT Aug 4, 2026
Forecast Valid:
9pm CDT Aug 4, 2026-6pm CDT Aug 11, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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