Sweet Marsh State Wildlife Management Area Weather Forecast

    • 59
    • 83

    Chance Rain Showers

    • 60
    • 86

    Mostly Sunny

    • 60
    • 86

    Partly Sunny

    • 59
    • 82

    Slight Chance Thunderstorms

    • 58
    • 79

    Partly Sunny

    • 55
    • 77

    Partly Sunny

Today 25 May Bremer

Mostly cloudy after Midnight, then clearing. A chance of Showers after midnight. Highs in the lower 80s. South Winds 5 to 10 Mph with Gusts up to 20 Mph, increasing to 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 50 percent.

Tonight 25 May Bremer

Mostly clear. Lows in the upper 50s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

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

    56.7 °F

  • Highest 15 May, 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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