Flandrau State Park Weather Forecast

    • 29
    • 35

    Increasing Clouds

    • 25
    • 40

    Partly Sunny

    • 23
    • 33

    Mostly Cloudy

    • 31
    • 39

    Mostly Cloudy

    • 21
    • 42

    Partly Sunny

    • 22
    • 32

    Mostly Cloudy

Today 21 Dec Brown

Increasing Clouds. Highs in the mid 30s. South Winds 5 to 15 Mph.

Tonight 21 Dec Brown

Not as cold. Mostly cloudy. Chance of light freezing rain and slight chance of snow in the Evening, then slight chance of light freezing rain after midnight. Near steady temperature in the lower 30s. South Winds 10 to 15 Mph. Chance of precipitation 30 percent.

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Flandrau State Park Temperature Statistics

December Temperature

New Ulm Municipal Airport (2.5 miles)

  • Lowest 4 December, 2025

    -5.8 °F

  • Average December

    19.4 °F

  • Highest 16 December, 2025

    44.6 °F

Climate (2020–Present)

New Ulm Municipal Airport (2.5 miles)

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  • Average Low 2020–2025

    37.4 °F

  • Average 2020–2025

    47.2 °F

  • Average High 2020–2025

    56.8 °F
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