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

Areas of Extreme Heat and Excessive Rainfall Potential

Dangerous and extreme heat will remain across portions of the central U.S. this week, persisting across the mid to lower Mississippi Valley, Gulf Coast, southern Plains and portions of Texas. A heat wave over the Southwest U.S. will peak this weekend. Heavy to excessive rainfall may produce flash flooding from the Delmarva Peninsula north into the Hudson Valley today and tonight. Read More >

Current conditions at

Ottumwa Regional Airport (KOTM)

Lat: 41.1°NLon: 92.44°WElev: 830ft.

Fair

83°F

28°C

Humidity 74%
Wind Speed NE 7 mph
Barometer 29.88 in (1010.9 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 28 Jul 6:53 pm CDT
Extended Forecast for

5 Miles SW Millersburg IA

  • Tonight

    Tonight: Partly cloudy, with a low around 67. Northeast wind around 5 mph becoming calm in the evening.

    Low: 67 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 88. Southeast wind around 5 mph.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 65. Southeast wind around 5 mph.

    Low: 65 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 86. South wind 5 to 10 mph.

    High: 86 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers likely after 1am. Mostly cloudy, with a low around 65. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 65 °F

    Mostly Cloudy
    then Showers
    Likely

  • Friday

    Friday: Showers, with thunderstorms also possible after 7am. High near 81. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    High: 81 °F

    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.

    Low: 63 °F

    Chance
    T-storms

  • Saturday

    Saturday: Partly sunny, with a high near 79. Breezy.

    High: 79 °F

    Partly Sunny
    and Breezy

  • Saturday Night

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

    Low: 62 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 67. Northeast wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 88. Southeast wind around 5 mph.
Wednesday Night
Mostly clear, with a low around 65. Southeast wind around 5 mph.
Thursday
Mostly sunny, with a high near 86. South wind 5 to 10 mph.
Thursday Night
Showers likely after 1am. Mostly cloudy, with a low around 65. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Showers, with thunderstorms also possible after 7am. High near 81. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
Saturday
Partly sunny, with a high near 79. Breezy.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Sunny, with a high near 82.
Sunday Night
Clear, with a low around 62.
Monday
Sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles SW Millersburg IA
 41.53°N 92.23°W (Elev. 850 ft)
Last Update:
5:26 pm CDT Jul 28, 2026
Forecast Valid:
7pm CDT Jul 28, 2026-6pm CDT Aug 4, 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