Decorah Weather Forecast

    • 35
    • 57

    Mostly Sunny

    • 33
    • 54

    Partly Sunny

    • 33
    • 54

    Partly Sunny

    • 40
    • 60

    Partly Sunny

    • 42
    • 67

    Slight Chance Rain Showers

    • 43
    • 67

    Chance Rain Showers

Today 29 Apr Winneshiek

Mostly sunny. Highs in the mid 50s. Northwest Winds 10 to 15 Mph. Gusts up to 30 Mph this morning.

Tonight 29 Apr Winneshiek

Partly cloudy in the Evening, then becoming mostly clear. Areas of frost after midnight. Lows in the mid 30s. Northwest Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Decorah Temperature Statistics

April Temperature

Decorah (2.5 miles)

  • Lowest 7 April, 2026

    23 °F

  • Average April

    46.3 °F

  • Highest 17 April, 2026

    77 °F

Climate (2021–Present)

Decorah (2.5 miles)

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  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    48.2 °F

  • Average High 2021–2026

    56.8 °F
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