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.

Fair

56°F

13°C

Humidity 70%
Wind Speed S 7 mph
Barometer 29.70 in (1005.7 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 9 Mar 10:53 pm CDT
Extended Forecast for

Chillicothe IA

  • Tonight

    Tonight: Mostly clear, with a low around 47. South southwest wind around 5 mph.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: A 20 percent chance of showers after 4pm. Mostly sunny, with a high near 73. East wind 6 to 10 mph.

    High: 73 °F

    Sunny then
    Slight Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms, then showers likely after 1am. Increasing clouds, with a low around 39. East wind 9 to 11 mph becoming north after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 39 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday

    Wednesday: A 30 percent chance of rain before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 50. Breezy, with a north northwest wind 14 to 20 mph, with gusts as high as 30 mph. New precipitation amounts of less than a tenth of an inch possible.

    High: 50 °F

    Chance Rain
    and Breezy

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 28. Northwest wind 5 to 11 mph, with gusts as high as 21 mph.

    Low: 28 °F

    Mostly Clear

  • Thursday

    Thursday: Partly sunny, with a high near 56. Breezy.

    High: 56 °F

    Mostly Sunny
    then Partly
    Sunny and
    Breezy

  • Thursday Night

    Thursday Night: A 30 percent chance of rain, mainly before 1am. Mostly cloudy, with a low around 39. Breezy.

    Low: 39 °F

    Chance Rain
    and Breezy

  • Friday

    Friday: Mostly cloudy, with a high near 54.

    High: 54 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 47. South southwest wind around 5 mph.
Tuesday
A 20 percent chance of showers after 4pm. Mostly sunny, with a high near 73. East wind 6 to 10 mph.
Tuesday Night
A chance of showers and thunderstorms, then showers likely after 1am. Increasing clouds, with a low around 39. East wind 9 to 11 mph becoming north after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 30 percent chance of rain before 1pm. Cloudy, then gradually becoming mostly sunny, with a high near 50. Breezy, with a north northwest wind 14 to 20 mph, with gusts as high as 30 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Mostly clear, with a low around 28. Northwest wind 5 to 11 mph, with gusts as high as 21 mph.
Thursday
Partly sunny, with a high near 56. Breezy.
Thursday Night
A 30 percent chance of rain, mainly before 1am. Mostly cloudy, with a low around 39. Breezy.
Friday
Mostly cloudy, with a high near 54.
Friday Night
Mostly cloudy, with a low around 35.
Saturday
Mostly cloudy, with a high near 62.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 37.
Sunday
A 30 percent chance of rain. Mostly cloudy, with a high near 48. Windy.
Sunday Night
Partly cloudy, with a low around 19. Blustery.
Monday
Mostly sunny, with a high near 36.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Chillicothe IA
 41.09°N 92.53°W
Last Update:
10:26 pm CDT Mar 9, 2026
Forecast Valid:
11pm CDT Mar 9, 2026-6pm CDT Mar 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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