Ossian Weather Forecast

    • 38
    • 61

    Mostly Sunny

    • 46
    • 53

    Rain Showers

    • 48
    • 58

    Rain Showers

    • 51
    • 64

    Slight Chance Rain Showers

    • 56
    • 64

    Rain Showers

    • 52
    • 66

    Rain Showers

    • 44
    • 60

    Chance Rain Showers

Today 29 Oct Winneshiek

Mostly cloudy in the Morning, then becoming partly sunny. A 40 percent chance of rain Showers. Highs in the mid 50s.

Tonight 29 Oct Winneshiek

Mostly clear. Lows in the upper 30s. Light Winds.

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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

    58.5 °F

  • Highest 12 October, 2026

    87.8 °F

Climate (2021–2026)

Decorah (9.3 miles)

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  • Average Low 2021–2026

    39.1 °F

  • Average 2021–2026

    47.8 °F

  • Average High 2021–2026

    56.5 °F
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