Chillicothe Weather Forecast

    • 45
    • 77

    Chance Thunderstorms

    • 43
    • 62

    Mostly Cloudy

    • 42
    • 63

    Mostly Sunny

    • 39
    • 65

    Slight Chance Thunderstorms

    • 38
    • 63

    Mostly Sunny

    • 45
    • 68

    Mostly Sunny

Today 27 Apr Wapello

Showers with a chance of Thunderstorms this Morning, then Showers and Thunderstorms likely this afternoon. Highs in the mid 70s. South Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain near 100 percent.

Tonight 27 Apr Wapello

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly cloudy after midnight. Less humid with Lows in the mid 40s. West Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Chillicothe Temperature Statistics

April Temperature

Ottumwa Regional Airport (4.3 miles)

  • Lowest 5 April, 2026

    33.7 °F

  • Average April

    54.9 °F

  • Highest 14 April, 2026

    86.6 °F

Climate (2021–Present)

Ottumwa Regional Airport (4.3 miles)

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  • Average Low 2021–2026

    42.1 °F

  • Average 2021–2026

    52.7 °F

  • Average High 2021–2026

    63.3 °F
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