Fort Madison Weather Forecast

    • 76
    • 96

    Mostly Sunny

    • 74
    • 96

    Mostly Sunny

    • 72
    • 94

    Mostly Sunny

    • 69
    • 89

    Partly Sunny

    • 71
    • 89

    Partly Sunny

    • 75
    • 93

    Partly Sunny

Today 3 Sep Lee

Sunny, hot with Highs in the mid 90s. Southwest Winds 5 to 10 Mph. Heat index Values up to 107.

Tonight 3 Sep Lee

Mostly clear. Humid with Lows in the mid 70s. South Winds around 5 Mph. Heat index Values up to 105 early in the evening.

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Fort Madison Temperature Statistics

September Temperature

Fort Madison Municipal Airport (1.9 miles)

  • Lowest 1 September, 2026

    75.2 °F

  • Average September

    84.1 °F

  • Highest 1 September, 2026

    96.8 °F

Climate (2021–2026)

Fort Madison Municipal Airport (1.9 miles)

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  • Average Low 2021–2026

    45.4 °F

  • Average 2021–2026

    54.9 °F

  • Average High 2021–2026

    64.7 °F
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