Ossian Weather Forecast

    • 63
    • 74

    Rain Showers

    • 65
    • 76

    Rain Showers

    • 66
    • 82

    Rain Showers Likely

    • 60
    • 78

    Slight Chance Rain Showers

    • 58
    • 76

    Partly Sunny

    • 61
    • 77

    Chance Thunderstorms

Today 13 Aug Winneshiek

Showers with a slight chance of Thunderstorms this Morning, then Showers likely with a chance of Thunderstorms this afternoon. Highs in the mid 70s. East Winds 5 to 10 Mph. Chance of rain 90 percent.

Tonight 13 Aug Winneshiek

Mostly cloudy with a slight chance of Thunderstorms. A slight chance of Showers in the Evening, then a chance of Showers after midnight. Humid with Lows in the lower 60s. East Winds 5 to 10 Mph. Chance of rain 50 percent.

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Ossian Temperature Statistics

August Temperature

Decorah (9.3 miles)

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  • Average August

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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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