Sweet Marsh State Wildlife Management Area Weather Forecast

    • 57
    • 83

    Partly Sunny

    • 59
    • 82

    Mostly Cloudy

    • 57
    • 82

    Mostly Cloudy

    • 57
    • 82

    Partly Sunny

    • 56
    • 82

    Mostly Sunny

    • 54
    • 81

    Mostly Sunny

Today 28 May Bremer

Mostly sunny. Highs in the lower 80s. East Winds 10 to 15 Mph.

Tonight 28 May Bremer

Partly cloudy. Lows around 60. East Winds 5 to 10 Mph with Gusts up to 20 Mph.

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Sweet Marsh State Wildlife Management Area Temperature Statistics

May Temperature

Oelwein Municipal Airport (16.2 miles)

  • Lowest 6 May, 2026

    30.2 °F

  • Average May

    58 °F

  • Highest 25 May, 2026

    86 °F

Climate (2021–Present)

Oelwein Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    38.6 °F

  • Average 2021–2026

    48.4 °F

  • Average High 2021–2026

    58.2 °F
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