Lamoni Weather Forecast

    • 70
    • 85

    Chance Thunderstorms

    • 65
    • 83

    Rain Showers Likely

    • 61
    • 71

    Rain Showers Likely

    • 56
    • 62

    Slight Chance Rain Showers

    • 52
    • 60

    Mostly Cloudy

    • 57
    • 64

    Mostly Cloudy

Today 18 Sep Decatur

Mostly cloudy in the Morning, then becoming mostly sunny. Patchy fog in the morning. Humid with Highs in the mid 80s. East Winds 5 to 10 Mph, becoming southeast in the afternoon.

Tonight 18 Sep Decatur

Partly cloudy in the Evening, then mostly cloudy with a chance of Showers and Thunderstorms after midnight. Humid with Lows around 70. South Winds 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lamoni Temperature Statistics

September Temperature

Lamoni, Lamoni Municipal Airport (1.2 miles)

  • Lowest 14 September, 2026

    55 °F

  • Average September

    76.5 °F

  • Highest 2 September, 2026

    97.6 °F

Climate (2021–2026)

Lamoni, Lamoni Municipal Airport (1.2 miles)

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  • Average Low 2021–2026

    43.6 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    63.9 °F
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