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.

Mostly Cloudy

67°F

19°C

Humidity 57%
Wind Speed NW 16 G 24 mph
Barometer 30.04 in (1017.0 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 14 Jun 11:53 am CDT
Extended Forecast for

Chillicothe IA

  • This Afternoon

    This Afternoon: Sunny, with a high near 73. Breezy, with a north northwest wind 14 to 16 mph, with gusts as high as 23 mph.

    High: 73 °F

    Sunny and
    Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 52. North northwest wind 5 to 8 mph becoming calm in the evening.

    Low: 52 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 79. Light west wind increasing to 5 to 9 mph in the morning.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after 3am. Mostly clear, with a low around 58. South southwest wind 6 to 11 mph, with gusts as high as 22 mph.

    Low: 58 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: A 10 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 79. West northwest wind around 14 mph, with gusts as high as 24 mph.

    High: 79 °F

    Slight Chance
    T-storms then
    Sunny

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 58. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Mostly Clear
    then Chance
    T-storms

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 84. Breezy. Chance of precipitation is 90%.

    High: 84 °F

    Showers then
    T-storms and
    Breezy

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 61. Chance of precipitation is 40%.

    Low: 61 °F

    Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 73. Breezy, with a north northwest wind 14 to 16 mph, with gusts as high as 23 mph.
Tonight
Mostly clear, with a low around 52. North northwest wind 5 to 8 mph becoming calm in the evening.
Monday
Sunny, with a high near 79. Light west wind increasing to 5 to 9 mph in the morning.
Monday Night
A 20 percent chance of showers and thunderstorms after 3am. Mostly clear, with a low around 58. South southwest wind 6 to 11 mph, with gusts as high as 22 mph.
Tuesday
A 10 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 79. West northwest wind around 14 mph, with gusts as high as 24 mph.
Tuesday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 58. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Showers and possibly a thunderstorm. High near 84. Breezy. Chance of precipitation is 90%.
Wednesday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 61. Chance of precipitation is 40%.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Mostly clear, with a low around 56.
Juneteenth
Sunny, with a high near 83.
Friday Night
Mostly clear, with a low around 61.
Saturday
Mostly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chillicothe IA
 41.09°N 92.53°W
Last Update:
11:37 am CDT Jun 14, 2026
Forecast Valid:
12pm CDT Jun 14, 2026-6pm CDT Jun 20, 2026
 
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Additional Resources

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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