Sweet Marsh State Wildlife Management Area Weather Forecast

    • 27
    • 62

    Chance Rain Showers

    • 23
    • 44

    Mostly Sunny

    • 37
    • 52

    Partly Sunny

    • 45
    • 65

    Partly Sunny

    • 49
    • 69

    Mostly Cloudy

    • 51
    • 71

    Chance Rain

Today 26 Mar Bremer

Partly sunny in the Morning, then becoming mostly cloudy. A 40 percent chance of rain. Highs in the lower 60s. Northeast Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 26 Mar Bremer

Partly cloudy. Lows in the upper 40s. Southeast Winds around 5 Mph.

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Sweet Marsh State Wildlife Management Area Temperature Statistics

March Temperature

Oelwein Municipal Airport (16.2 miles)

  • Lowest 16 March, 2026

    8.6 °F

  • Average March

    39.6 °F

  • Highest 21 March, 2026

    84.2 °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

    58.1 °F
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