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.

Overcast

60°F

16°C

Humidity 86%
Wind Speed NE 3 mph
Barometer 30.18 in (1021.7 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 15 Oct 4:53 am CDT
Extended Forecast for

Delta IA

  • Overnight

    Overnight: A 30 percent chance of showers. Cloudy, with a low around 58. East wind around 5 mph.

    Low: 58 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers before 1pm, then a slight chance of showers after 3pm. Mostly cloudy, with a high near 74. East wind around 5 mph. Chance of precipitation is 30%.

    High: 74 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers. Partly cloudy, with a low around 57. East wind 5 to 10 mph.

    Low: 57 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 80. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.

    High: 80 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 82.

    High: 82 °F

    Partly Sunny

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Low around 56. Chance of precipitation is 90%.

    Low: 56 °F

    Showers

  • Saturday

    Saturday: A 30 percent chance of showers. Mostly sunny, with a high near 71.

    High: 71 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: A 40 percent chance of showers. Partly cloudy, with a low around 43.

    Low: 43 °F

    Chance
    Showers

Detailed Forecast

Overnight
A 30 percent chance of showers. Cloudy, with a low around 58. East wind around 5 mph.
Wednesday
A chance of showers before 1pm, then a slight chance of showers after 3pm. Mostly cloudy, with a high near 74. East wind around 5 mph. Chance of precipitation is 30%.
Wednesday Night
A 20 percent chance of showers. Partly cloudy, with a low around 57. East wind 5 to 10 mph.
Thursday
Mostly sunny, with a high near 80. Southeast wind 10 to 15 mph, with gusts as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 61.
Friday
Partly sunny, with a high near 82.
Friday Night
Showers and possibly a thunderstorm. Low around 56. Chance of precipitation is 90%.
Saturday
A 30 percent chance of showers. Mostly sunny, with a high near 71.
Saturday Night
A 40 percent chance of showers. Partly cloudy, with a low around 43.
Sunday
Sunny, with a high near 62.
Sunday Night
Clear, with a low around 42.
Monday
Sunny, with a high near 70.
Monday Night
Mostly clear, with a low around 46.
Tuesday
Sunny, with a high near 69.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Delta IA
 41.33°N 92.32°W (Elev. 840 ft)
Last Update:
4:16 am CDT Oct 15, 2025
Forecast Valid:
5am CDT Oct 15, 2025-6pm CDT Oct 21, 2025
 
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