Nine Eagles State Park Weather Forecast

    • 71
    • 89

    Rain Showers Likely

    • 72
    • 89

    Chance Thunderstorms

    • 71
    • 89

    Chance Thunderstorms

    • 66
    • 83

    Chance Thunderstorms

    • 65
    • 78

    Partly Sunny

    • 67
    • 82

    Slight Chance Thunderstorms

Today 13 Aug Decatur

Mostly cloudy with a chance of Showers and Thunderstorms this Morning, then mostly sunny with a slight chance of Showers and Thunderstorms this afternoon. Highs in the upper 80s. East Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 50 percent. Heat index Values up to 100 this afternoon.

Tonight 13 Aug Decatur

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly cloudy with a chance of Showers and Thunderstorms after midnight. Humid with Lows around 70. East Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 40 percent.

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Nine Eagles State Park Temperature Statistics

August Temperature

Lamoni, Lamoni Municipal Airport (7.5 miles)

  • Lowest 1 August, 2026

    62.7 °F

  • Average August

    75.2 °F

  • Highest 9 August, 2026

    90.6 °F

Climate (2021–2026)

Lamoni, Lamoni Municipal Airport (7.5 miles)

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  • Average Low 2021–2026

    43.5 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    63.9 °F
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