Ossian Weather Forecast

    • 41
    • 67

    Rain Showers Likely

    • 39
    • 56

    Mostly Cloudy

    • 38
    • 56

    Partly Sunny

    • 34
    • 54

    Partly Sunny

    • 33
    • 53

    Partly Sunny

    • 41
    • 60

    Partly Sunny

    • 43
    • 65

    Slight Chance Rain Showers

Today 27 Apr Winneshiek

Showers likely with a chance of Thunderstorms. Highs in the mid 60s. South Winds 10 to 15 Mph. Chance of rain 70 percent.

Tonight 27 Apr Winneshiek

Cloudy. A slight chance of rain Showers this evening. Colder with Lows in the lower 40s. West Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ossian Temperature Statistics

April Temperature

Decorah (9.3 miles)

  • Lowest 7 April, 2026

    23 °F

  • Average April

    46.3 °F

  • Highest 17 April, 2026

    77 °F

Climate (2021–Present)

Decorah (9.3 miles)

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  • Average Low 2021–2026

    39.5 °F

  • Average 2021–2026

    48.2 °F

  • Average High 2021–2026

    56.8 °F
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