Sweet Marsh State Wildlife Management Area Weather Forecast

    • 4
    • 11

    Partly Sunny

    • 22
    • 30

    Mostly Cloudy

    • 4
    • 28

    Slight Chance Snow

    • 8
    • 17

    Partly Sunny

    • 10
    • 23

    Mostly Cloudy

    • 16
    • 25

    Partly Sunny

    • 20
    • 33

    Partly Sunny

Today 29 Dec Bremer

Partly sunny. Patchy blowing snow. A chance of Flurries this afternoon. Much cooler. Near steady temperature around 9 above. Northwest Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 29 Dec Bremer

Partly cloudy in the Evening, then becoming mostly clear. Lows around 4 above. Northwest Winds 10 to 15 Mph. Gusts up to 30 Mph in the evening.

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Sweet Marsh State Wildlife Management Area Temperature Statistics

December Temperature

Oelwein Municipal Airport (16.2 miles)

  • Lowest 4 December, 2025

    -11.2 °F

  • Average December

    21 °F

  • Highest 27 December, 2025

    41 °F

Climate (2020–Present)

Oelwein Municipal Airport (16.2 miles)

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  • Average Low 2020–2025

    38.5 °F

  • Average 2020–2025

    48.2 °F

  • Average High 2020–2025

    57.9 °F
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