Sioux Council Boy Scout Reservation Weather Forecast

    • 39
    • 59

    Gradual Clearing

    • 43
    • 64

    Mostly Cloudy

    • 44
    • 64

    Mostly Cloudy

    • 45
    • 65

    Rain Showers Likely

    • 50
    • 73

    Partly Sunny

    • 56
    • 84

    Partly Sunny

Today 19 May Yankton

Mostly cloudy this Morning, then becoming mostly sunny. Highs in the upper 50s. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 19 May Yankton

Partly cloudy in the Evening, then clearing. Lows in the mid 30s. North Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming east around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Sioux Council Boy Scout Reservation Temperature Statistics

May Temperature

Yankton, Chan Gurney Municipal Airport (11.2 miles)

  • Lowest 6 May, 2026

    30 °F

  • Average May

    59 °F

  • Highest 15 May, 2026

    88 °F

Climate (2021–Present)

Yankton, Chan Gurney Municipal Airport (11.2 miles)

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  • Average Low 2021–2026

    39.3 °F

  • Average 2021–2026

    50.5 °F

  • Average High 2021–2026

    61.8 °F
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