Ossian Weather Forecast

    • 33
    • 51

    Mostly Cloudy

    • 32
    • 47

    Mostly Cloudy

    • 32
    • 46

    Mostly Cloudy

    • 37
    • 52

    Partly Sunny

    • 33
    • 56

    Mostly Sunny

    • 38
    • 57

    Partly Sunny

Today 30 Oct Winneshiek

Partly sunny in the Morning, then becoming mostly cloudy. Highs in the lower 50s. Northwest Winds 5 to 10 Mph.

Tonight 30 Oct Winneshiek

Mostly clear. Lows in the lower 30s. Northwest Winds around 5 Mph.

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Ossian Temperature Statistics

October Temperature

Decorah (9.3 miles)

  • Lowest 24 October, 2025

    28.4 °F

  • Average October

    55.8 °F

  • Highest 3 October, 2025

    87.8 °F

Climate (2020–Present)

Decorah (9.3 miles)

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  • Average Low 2020–2025

    39.5 °F

  • Average 2020–2025

    48.2 °F

  • Average High 2020–2025

    56.7 °F
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