Ossian Weather Forecast

    • 62
    • 79

    Slight Chance Thunderstorms

    • 62
    • 80

    Partly Sunny

    • 63
    • 82

    Mostly Sunny

    • 64
    • 84

    Mostly Sunny

    • 66
    • 85

    Mostly Sunny

    • 68
    • 87

    Mostly Sunny

Today 9 Jul Winneshiek

Mostly cloudy with a slight chance of Showers in the Morning, then partly sunny in the afternoon. Humid with Highs around 80. Northwest Winds around 5 Mph. Chance of rain 20 percent.

Tonight 9 Jul Winneshiek

Partly cloudy. Humid with Lows in the lower 60s. Light Winds.

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Ossian Temperature Statistics

July Temperature

Decorah (9.3 miles)

  • Lowest 6 July, 2026

    62.6 °F

  • Average July

    73.3 °F

  • Highest 1 July, 2026

    84.2 °F

Climate (2021–2026)

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

    56.8 °F
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