Sweet Marsh State Wildlife Management Area Weather Forecast

    • 39
    • 58

    Mostly Cloudy

    • 39
    • 58

    Mostly Sunny

    • 36
    • 55

    Partly Sunny

    • 35
    • 56

    Partly Sunny

    • 42
    • 62

    Mostly Sunny

    • 44
    • 68

    Partly Sunny

Today 28 Apr Bremer

Partly sunny. Highs in the upper 50s. Northwest Winds 15 to 20 Mph.

Tonight 28 Apr Bremer

Cloudy. Near steady temperature in the mid 40s. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

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Sweet Marsh State Wildlife Management Area Temperature Statistics

April Temperature

Oelwein Municipal Airport (16.2 miles)

  • Lowest 7 April, 2026

    23 °F

  • Average April

    47.1 °F

  • Highest 17 April, 2026

    80.6 °F

Climate (2021–Present)

Oelwein Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    38.7 °F

  • Average 2021–2026

    48.4 °F

  • Average High 2021–2026

    58.2 °F
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