Decorah Municipal Airport Weather Forecast

    • 65
    • 79

    Slight Chance Thunderstorms

    • 63
    • 84

    Partly Sunny

    • 61
    • 83

    Mostly Sunny

    • 60
    • 83

    Mostly Sunny

    • 61
    • 82

    Slight Chance Thunderstorms

    • 61
    • 82

    Chance Rain Showers

    • 62
    • 82

    Chance Rain Showers

Today 14 Sep Winneshiek

Cloudy with a slight chance of Showers and Thunderstorms. Highs in the upper 70s. Southeast Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 14 Sep Winneshiek

Mostly cloudy. Lows in the lower 60s. Southeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Decorah Municipal Airport Temperature Statistics

September Temperature

Decorah (0 miles)

  • Lowest 7 September, 2024

    42.8 °F

  • Average September

    63.5 °F

  • Highest 11 September, 2024

    82.4 °F

Climate (2019–Present)

Decorah (0 miles)

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  • Average Low 2019–2024

    39.1 °F

  • Average 2019–2024

    47.7 °F

  • Average High 2019–2024

    56 °F
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