Ossian Weather Forecast

    • 52
    • 74

    Mostly Sunny

    • 55
    • 72

    Partly Sunny

    • 52
    • 72

    Mostly Cloudy

    • 48
    • 65

    Mostly Cloudy

    • 44
    • 59

    Chance Rain Showers

    • 45
    • 57

    Slight Chance Rain Showers

    • 43
    • 60

    Mostly Cloudy

Today 22 Oct Winneshiek

Mostly cloudy. Lows in the lower 40s. Highs in the upper 50s.

Tonight 22 Oct Winneshiek

Mostly clear. Lows in the lower 50s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ossian Temperature Statistics

October Temperature

Decorah (9.3 miles)

  • Lowest 17 October, 2026

    32 °F

  • Average October

    58.2 °F

  • Highest 12 October, 2026

    87.8 °F

Climate (2021–2026)

Decorah (9.3 miles)

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  • Average Low 2021–2026

    39 °F

  • Average 2021–2026

    47.7 °F

  • Average High 2021–2026

    56.4 °F
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