Sioux Council Boy Scout Reservation Weather Forecast

    • 25
    • 43

    Increasing Clouds

    • 17
    • 40

    Mostly Cloudy

    • 20
    • 37

    Mostly Cloudy

    • 21
    • 30

    Mostly Cloudy

    • 29
    • 43

    Partly Sunny

    • 27
    • 45

    Partly Sunny

Today 30 Dec Yankton

Mostly sunny. Not as cool with Highs in the lower 40s. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 30 Dec Yankton

Mostly cloudy. Not as cool with Lows in the mid 20s. Northwest Winds 10 to 15 Mph.

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Sioux Council Boy Scout Reservation Temperature Statistics

December Temperature

Yankton, Chan Gurney Municipal Airport (11.2 miles)

  • Lowest 14 December, 2025

    -13 °F

  • Average December

    27.7 °F

  • Highest 27 December, 2025

    57.9 °F

Climate (2020–Present)

Yankton, Chan Gurney Municipal Airport (11.2 miles)

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  • Average Low 2020–2025

    39.3 °F

  • Average 2020–2025

    50.2 °F

  • Average High 2020–2025

    61.4 °F
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