Fort Madison Weather Forecast

    • 23
    • 44

    Becoming Sunny

    • 29
    • 38

    Partly Sunny

    • 38
    • 47

    Mostly Cloudy

    • 37
    • 52

    Mostly Cloudy

    • 50
    • 58

    Mostly Cloudy

    • 43
    • 65

    Partly Sunny

Today 20 Dec Lee

Mostly sunny. Not as cool with Highs in the mid 40s. Temperature falling into the upper 30s this afternoon. Southwest Winds 10 to 15 Mph, becoming northwest this afternoon.

Tonight 20 Dec Lee

Mostly clear. Lows in the lower 20s. Northwest Winds 5 to 10 Mph.

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Fort Madison Temperature Statistics

December Temperature

Fort Madison Municipal Airport (1.9 miles)

  • Lowest 14 December, 2025

    -9.4 °F

  • Average December

    24.3 °F

  • Highest 18 December, 2025

    50 °F

Climate (2020–Present)

Fort Madison Municipal Airport (1.9 miles)

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  • Average Low 2020–2025

    45.5 °F

  • Average 2020–2025

    54.9 °F

  • Average High 2020–2025

    64.4 °F
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