Sweet Marsh State Wildlife Management Area Weather Forecast

    • -4
    • 16

    Partly Sunny

    • -4
    • 11

    Partly Sunny

    • -3
    • 11

    Mostly Sunny

    • 3
    • 14

    Partly Sunny

    • 14
    • 23

    Chance Snow

    • 13
    • 27

    Mostly Cloudy

    • 16
    • 28

    Mostly Cloudy

Today 28 Jan Bremer

Sunny. Highs around 14. Northwest Winds around 10 Mph.

Tonight 28 Jan Bremer

Mostly clear this Evening, then becoming partly cloudy. Cold with Lows 5 below to zero. Northwest Winds 5 to 10 Mph.

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Sweet Marsh State Wildlife Management Area Temperature Statistics

January Temperature

Oelwein Municipal Airport (16.2 miles)

  • Lowest 23 January, 2026

    -18.4 °F

  • Average January

    17.8 °F

  • Highest 12 January, 2026

    46.4 °F

Climate (2021–Present)

Oelwein Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    38.4 °F

  • Average 2021–2026

    48.2 °F

  • Average High 2021–2026

    57.8 °F
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