Santee Sioux Recreation Park Weather Forecast

    • 60
    • 82

    Mostly Sunny

    • 63
    • 84

    Rain Showers

    • 60
    • 79

    Rain Showers

    • 60
    • 76

    Chance Thunderstorms

    • 62
    • 79

    Slight Chance Thunderstorms

    • 62
    • 83

    Mostly Sunny

Today 16 Aug Knox

Mostly cloudy early this Morning, then clearing. Humid with Highs around 80. North Winds 5 to 10 Mph.

Tonight 16 Aug Knox

Mostly clear in the Evening, then partly cloudy with a slight chance of Showers after midnight. Lows around 60. Northeast Winds 5 to 10 Mph, becoming south after midnight. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Santee Sioux Recreation Park Temperature Statistics

August Temperature

Yankton, Chan Gurney Municipal Airport (23.6 miles)

  • Lowest 5 August, 2026

    52 °F

  • Average August

    72.8 °F

  • Highest 11 August, 2026

    90 °F

Climate (2021–2026)

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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