Cardinal Marsh State Wildlife Area Weather Forecast

    • 54
    • 78

    Becoming Sunny

    • 56
    • 76

    Sunny

    • 62
    • 77

    Rain Showers Likely

    • 53
    • 74

    Partly Sunny

    • 60
    • 70

    Rain Showers

    • 56
    • 76

    Rain Showers Likely

Today 9 Sep Winneshiek

Mostly sunny. Highs around 80. West Winds 5 to 10 Mph.

Tonight 9 Sep Winneshiek

Mostly clear. Cooler with Lows in the mid 50s. Northwest Winds 5 to 10 Mph.

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Cardinal Marsh State Wildlife Area Temperature Statistics

September Temperature

Decorah (16.2 miles)

  • Lowest 7 September, 2026

    62.6 °F

  • Average September

    74 °F

  • Highest 4 September, 2026

    87.8 °F

Climate (2021–2026)

Decorah (16.2 miles)

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  • Average Low 2021–2026

    39.1 °F

  • Average 2021–2026

    47.8 °F

  • Average High 2021–2026

    56.4 °F
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