Decorah Municipal Airport Weather Forecast

    • 43
    • 67

    Partly Sunny

    • 44
    • 76

    Partly Sunny

    • 28
    • 48

    Mostly Cloudy

    • 37
    • 47

    Mostly Cloudy

    • 36
    • 53

    Mostly Cloudy

    • 41
    • 53

    Mostly Cloudy

Today 20 Mar Winneshiek

Mostly sunny. Highs in the upper 60s. Northwest Winds 10 to 15 Mph.

Tonight 20 Mar Winneshiek

Partly cloudy. Lows in the lower 40s. Northeast Winds around 5 Mph, becoming southeast after midnight.

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Decorah Municipal Airport Temperature Statistics

March Temperature

Decorah (0 miles)

  • Lowest 16 March, 2026

    8.6 °F

  • Average March

    36 °F

  • Highest 9 March, 2026

    68 °F

Climate (2021–Present)

Decorah (0 miles)

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  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    48.2 °F

  • Average High 2021–2026

    56.7 °F
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