Sweet Marsh State Wildlife Management Area Weather Forecast

    • 56
    • 76

    Increasing Clouds

    • 53
    • 69

    Rain Showers Likely

    • 53
    • 74

    Partly Sunny

    • 55
    • 74

    Chance Thunderstorms

    • 53
    • 74

    Mostly Sunny

    • 55
    • 75

    Slight Chance Thunderstorms

Today 20 Jun Bremer

Mostly sunny. Highs in the mid 70s. Northwest Winds 5 to 10 Mph.

Tonight 20 Jun Bremer

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the mid 50s. Northeast Winds around 5 Mph, becoming east after midnight.

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Sweet Marsh State Wildlife Management Area Temperature Statistics

June Temperature

Oelwein Municipal Airport (16.2 miles)

  • Lowest 15 June, 2026

    48.2 °F

  • Average June

    68.9 °F

  • Highest 4 June, 2026

    86 °F

Climate (2021–2026)

Oelwein Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    38.8 °F

  • Average 2021–2026

    48.5 °F

  • Average High 2021–2026

    58.3 °F
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