Decorah Weather Forecast

    • -6
    • 13

    Mostly Sunny

    • -3
    • 11

    Partly Sunny

    • -1
    • 12

    Mostly Sunny

    • 3
    • 17

    Mostly Sunny

    • 16
    • 23

    Chance Snow

    • 12
    • 28

    Mostly Cloudy

    • 18
    • 27

    Mostly Cloudy

Today 28 Jan Winneshiek

Sunny. Near steady temperature around 9 above. Northwest Winds 5 to 10 Mph.

Tonight 28 Jan Winneshiek

Partly cloudy. Cold with Lows around 6 below. Northwest Winds 5 to 10 Mph. Wind chill Values as low as 15 below.

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  • Temperature Real-Time

Decorah Temperature Statistics

January Temperature

Decorah (2.5 miles)

  • Lowest 23 January, 2026

    -20.2 °F

  • Average January

    17.2 °F

  • Highest 13 January, 2026

    48.2 °F

Climate (2021–Present)

Decorah (2.5 miles)

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  • Average Low 2021–2026

    39.3 °F

  • Average 2021–2026

    48 °F

  • Average High 2021–2026

    56.5 °F
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