Sweet Marsh State Wildlife Management Area Weather Forecast

    • 39
    • 58

    Mostly Cloudy

    • 39
    • 58

    Partly Sunny

    • 34
    • 55

    Partly Sunny

    • 35
    • 55

    Partly Sunny

    • 40
    • 61

    Partly Sunny

    • 43
    • 68

    Partly Sunny

Today 28 Apr Bremer

Partly sunny. Highs in the upper 50s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 28 Apr Bremer

Mostly cloudy. Lows in the upper 30s. Northwest Winds 5 to 10 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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