Santee Sioux Recreation Park Weather Forecast

    • 44
    • 71

    Mostly Sunny

    • 58
    • 86

    Partly Sunny

    • 46
    • 78

    Mostly Sunny

    • 54
    • 79

    Mostly Sunny

    • 57
    • 88

    Partly Sunny

    • 57
    • 89

    Partly Sunny

Today 10 May Knox

Mostly sunny. Highs in the lower 70s. West Winds 5 to 10 Mph, becoming northwest 10 to 15 Mph in the afternoon.

Tonight 10 May Knox

Mostly clear. Near steady temperature in the lower 40s. Southwest Winds around 5 Mph.

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Santee Sioux Recreation Park Temperature Statistics

May Temperature

Yankton, Chan Gurney Municipal Airport (23.6 miles)

  • Lowest 6 May, 2026

    30 °F

  • Average May

    51.6 °F

  • Highest 3 May, 2026

    72 °F

Climate (2021–Present)

Yankton, Chan Gurney Municipal Airport (23.6 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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