Ossian Weather Forecast

    • 59
    • 78

    Becoming Sunny

    • 59
    • 79

    Chance Thunderstorms

    • 63
    • 79

    Chance Thunderstorms

    • 64
    • 81

    Chance Thunderstorms

    • 62
    • 80

    Chance Rain Showers

    • 60
    • 77

    Slight Chance Thunderstorms

Today 6 Aug Winneshiek

Areas of fog in the morning. Mostly sunny. Highs in the upper 70s. Light and variable Winds, becoming south around 5 Mph in the afternoon.

Tonight 6 Aug Winneshiek

Partly cloudy. Patchy fog. Lows in the mid 50s. West Winds around 5 Mph.

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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

    39.1 °F

  • Average 2021–2026

    47.8 °F

  • Average High 2021–2026

    56.5 °F
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