Santee Sioux Recreation Park Weather Forecast

    • 59
    • 88

    Chance Rain Showers

    • 61
    • 89

    Chance Thunderstorms

    • 60
    • 90

    Partly Sunny

    • 59
    • 87

    Slight Chance Thunderstorms

    • 58
    • 81

    Chance Thunderstorms

    • 56
    • 79

    Chance Rain Showers

Today 24 May Knox

Mostly sunny. A chance of Showers with a slight chance of Thunderstorms this afternoon. Highs in the upper 80s. South Winds around 5 Mph, increasing to 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 30 percent.

Tonight 24 May Knox

Mostly clear. A chance of Showers with a slight chance of Thunderstorms in the evening. Lows in the upper 50s. South Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 40 percent.

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  • Temperature Real-Time

Santee Sioux Recreation Park Temperature Statistics

May Temperature

Yankton, Chan Gurney Municipal Airport (23.6 miles)

  • Lowest 6 May, 2026

    30 °F

  • Average May

    57.9 °F

  • Highest 15 May, 2026

    88 °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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