Decorah Weather Forecast

    • 58
    • 72

    Rain Showers

    • 52
    • 75

    Mostly Sunny

    • 52
    • 75

    Mostly Sunny

    • 55
    • 76

    Partly Sunny

    • 58
    • 76

    Mostly Cloudy

    • 60
    • 75

    Slight Chance Rain Showers

Today 30 Jul Winneshiek

Showers with Thunderstorms likely this Morning, then scattered Showers and Thunderstorms this afternoon. Cooler with Highs in the lower 70s. Northeast Winds 5 to 10 Mph. Chance of rain 100 percent.

Tonight 30 Jul Winneshiek

Mostly cloudy. Isolated Showers and Thunderstorms in the evening. Cooler with Lows in the upper 50s. Northeast Winds 5 to 10 Mph. Chance of rain 20 percent.

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Decorah Temperature Statistics

July Temperature

Decorah (2.5 miles)

  • Lowest 18 July, 2025

    53.6 °F

  • Average July

    73.3 °F

  • Highest 4 July, 2025

    87.8 °F

Climate (2020–Present)

Decorah (2.5 miles)

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  • Average Low 2020–2025

    39.2 °F

  • Average 2020–2025

    47.9 °F

  • Average High 2020–2025

    56.4 °F
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