Thunderstorms from the Plains into the Central Appalachians; Heavy Rain in the Central Gulf Coast; Heat Across Portions of the East

Widespread showers and thunderstorms are likely from from northeast New Mexico/Southeast Colorado, eastward into the Central Plains through the Central Appalachians. Slow moving low to bring heavy rainfall to the Central Gulf Coast into the weekend. Dangerous heat is expected from the Lower Mississippi Valley, Tennessee Valley, Ohio Valley into the Mid-Atlantic and Northeast. Read More >

Hazardous Weather Conditions

Current conditions at

Ottumwa Regional Airport (KOTM)

Lat: 41.1°NLon: 92.44°WElev: 830ft.

Fair

70°F

21°C

Humidity 93%
Wind Speed NW 3 mph
Barometer 29.91 in (1012.1 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 16 Jul 10:53 pm CDT
Extended Forecast for

6 Miles S Ottumwa IA

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after midnight.  Increasing clouds, with a low around 62. North northwest wind 3 to 8 mph.

    Low: 62 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: A 20 percent chance of showers before 10am.  Mostly cloudy, with a high near 76. North wind 7 to 9 mph.

    High: 76 °F

    Slight Chance
    Showers then
    Partly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 62. East northeast wind around 6 mph.

    Low: 62 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of showers, with thunderstorms also possible after 1pm.  Mostly cloudy, with a high near 83. Southeast wind around 7 mph.  Chance of precipitation is 20%.

    High: 83 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 71. South southeast wind around 6 mph.  New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 71 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms, mainly before 1pm.  Partly sunny, with a high near 90. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 90 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a high near 86.

    High: 86 °F

    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms after midnight. Increasing clouds, with a low around 62. North northwest wind 3 to 8 mph.
Thursday
A 20 percent chance of showers before 10am. Mostly cloudy, with a high near 76. North wind 7 to 9 mph.
Thursday Night
Partly cloudy, with a low around 62. East northeast wind around 6 mph.
Friday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 83. Southeast wind around 7 mph. Chance of precipitation is 20%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71. South southeast wind around 6 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A 40 percent chance of showers and thunderstorms, mainly before 1pm. Partly sunny, with a high near 90. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Sunday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70.
Monday
Partly sunny, with a high near 91.
Monday Night
Partly cloudy, with a low around 73.
Tuesday
Mostly sunny, with a high near 95.
Tuesday Night
Mostly clear, with a low around 75.
Wednesday
Sunny, with a high near 96.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles S Ottumwa IA
 40.94°N 92.42°W
10:52 pm CDT Jul 16, 2025
11pm CDT Jul 16, 2025-6pm CDT Jul 23, 2025
 
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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