Sweet Marsh State Wildlife Management Area Weather Forecast

    • 43
    • 67

    Becoming Sunny

    • 52
    • 80

    Chance Thunderstorms

    • 32
    • 63

    Chance Rain Showers

    • 30
    • 48

    Chance Rain/Snow

    • 32
    • 43

    Chance Rain/Snow

    • 39
    • 53

    Rain Showers Likely

Today 29 Mar Bremer

Mostly sunny. Highs in the upper 60s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 29 Mar Bremer

Mostly clear. Lows in the mid 40s. South Winds 10 to 15 Mph.

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  • Temperature Real-Time

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

    40.4 °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

    38.6 °F

  • Average 2021–2026

    48.4 °F

  • Average High 2021–2026

    58.2 °F
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