Decatur City Weather Forecast

    • 74
    • 96

    Chance Thunderstorms

    • 77
    • 97

    Slight Chance Thunderstorms

    • 77
    • 98

    Slight Chance Thunderstorms

    • 77
    • 95

    Slight Chance Rain Showers

Today 31 Aug Decatur

Mostly sunny. Hot with Highs in the mid 90s. Southwest Winds 5 to 10 Mph. Heat index Values up to 102.

Tonight 31 Aug Decatur

Partly cloudy. Lows in the mid 70s. South Winds around 5 Mph. Heat index Values up to 100 early this evening.

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Decatur City Temperature Statistics

August Temperature

Lamoni, Lamoni Municipal Airport (8.1 miles)

  • Lowest 23 August, 2026

    58.6 °F

  • Average August

    75 °F

  • Highest 9 August, 2026

    90.6 °F

Climate (2021–2026)

Lamoni, Lamoni Municipal Airport (8.1 miles)

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  • Average Low 2021–2026

    43.5 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    63.8 °F
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