Areas of Dangerous Heat and Severe Thunderstorms

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week before returning over much of the Plains into next week. Scattered strong to severe thunderstorms are possible across parts of the Northeast U.S. on Thursday. Damaging wind, hail, and a tornado or two are possible. Read More >

Current conditions at

Ottumwa Regional Airport (KOTM)

Lat: 41.1°NLon: 92.44°WElev: 830ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Chillicothe IA

  • Tonight

    Tonight: Mostly clear, with a low around 62. North northwest wind around 5 mph becoming calm  in the evening.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84. Calm wind becoming north northwest 5 to 7 mph in the afternoon.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 60. Light and variable wind.

    Low: 60 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 86. Calm wind.

    High: 86 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 67. Calm wind becoming south 5 to 7 mph in the evening.

    Low: 67 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of showers before 1pm.  Mostly sunny, with a high near 89.

    High: 89 °F

    Slight Chance
    Showers

  • Saturday Night

    Saturday Night: A 20 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 72.

    Low: 72 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday

    Sunday: Mostly sunny and hot, with a high near 99. Breezy.

    High: 99 °F

    Mostly Sunny
    then Mostly
    Sunny and
    Breezy

  • Sunday Night

    Sunday Night: A 30 percent chance of showers after 1am.  Partly cloudy, with a low around 77.

    Low: 77 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Tonight
Mostly clear, with a low around 62. North northwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 84. Calm wind becoming north northwest 5 to 7 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 60. Light and variable wind.
Friday
Sunny, with a high near 86. Calm wind.
Friday Night
Partly cloudy, with a low around 67. Calm wind becoming south 5 to 7 mph in the evening.
Saturday
A 20 percent chance of showers before 1pm. Mostly sunny, with a high near 89.
Saturday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.
Sunday
Mostly sunny and hot, with a high near 99. Breezy.
Sunday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 77.
Monday
Mostly sunny and hot, with a high near 97.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Tuesday
Mostly sunny, with a high near 94.
Tuesday Night
A 40 percent chance of showers. Partly cloudy, with a low around 72.
Wednesday
A 30 percent chance of showers. Mostly sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
Chillicothe IA
 41.09°N 92.53°W
5:31 pm CDT Aug 26, 2026
8pm CDT Aug 26, 2026-6pm CDT Sep 2, 2026
 
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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