Calmar Weather Forecast

    • 7
    • 31

    Chance Snow

    • -1
    • 12

    Chance Snow

    • -5
    • 19

    Chance Snow

    • -3
    • 5

    Cold

    • 9
    • 15

    Mostly Cloudy

    • 8
    • 22

    Mostly Cloudy

Today 16 Jan Winneshiek

Mostly cloudy with a 40 percent chance of snow. Snow accumulation little or no. Highs in the lower 30s. Temperature falling to around 20 this afternoon. Northwest Winds 10 to 20 Mph. Gusts up to 30 Mph this afternoon.

Tonight 16 Jan Winneshiek

Mostly cloudy with a 40 percent chance of snow. Snow accumulation little or no. Much Colder with Lows around 7 above. Northwest Winds 10 to 20 Mph. Gusts up to 30 Mph in the evening.

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Calmar Temperature Statistics

January Temperature

Decorah (9.3 miles)

  • Lowest 1 January, 2026

    6.8 °F

  • Average January

    28 °F

  • Highest 13 January, 2026

    48.2 °F

Climate (2021–Present)

Decorah (9.3 miles)

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  • Average Low 2021–2026

    39.4 °F

  • Average 2021–2026

    48.1 °F

  • Average High 2021–2026

    56.6 °F
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