Sweet Marsh State Wildlife Management Area Weather Forecast

    • 59
    • 79

    Mostly Sunny

    • 54
    • 79

    Mostly Sunny

    • 62
    • 81

    Partly Sunny

    • 66
    • 81

    Chance Thunderstorms

    • 67
    • 86

    Chance Rain Showers

    • 63
    • 84

    Slight Chance Thunderstorms

Today 26 Aug Bremer

Mostly sunny. Highs around 80. West Winds around 5 Mph, increasing to northwest 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 26 Aug Bremer

Mostly clear. Lows in the upper 50s. Northwest Winds 10 to 15 Mph, Diminishing to around 5 Mph after midnight.

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Sweet Marsh State Wildlife Management Area Temperature Statistics

August Temperature

Oelwein Municipal Airport (16.2 miles)

  • Lowest 23 August, 2026

    50 °F

  • Average August

    71.2 °F

  • Highest 11 August, 2026

    84.2 °F

Climate (2021–2026)

Oelwein Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    38.4 °F

  • Average 2021–2026

    48.1 °F

  • Average High 2021–2026

    57.9 °F
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