Cotton Park Weather Forecast

    • 62
    • 89

    Increasing Clouds

    • 62
    • 77

    Rain Showers

    • 58
    • 73

    Rain Showers Likely

    • 55
    • 71

    Chance Thunderstorms

    • 56
    • 72

    Slight Chance Thunderstorms

    • 58
    • 77

    Partly Sunny

Today 16 Sep Clay

Sunny with Highs in the upper 80s. South Winds 5 to 10 Mph.

Tonight 16 Sep Clay

Partly cloudy in the Evening, then mostly cloudy with a chance of Showers and Thunderstorms after midnight. Humid with Lows in the lower 60s. Southeast Winds 5 to 10 Mph. Chance of rain 30 percent.

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Cotton Park Temperature Statistics

September Temperature

Yankton, Chan Gurney Municipal Airport (24.2 miles)

  • Lowest 7 September, 2025

    41 °F

  • Average September

    65.4 °F

  • Highest 13 September, 2025

    88 °F

Climate (2020–Present)

Yankton, Chan Gurney Municipal Airport (24.2 miles)

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  • Average Low 2020–2025

    39.1 °F

  • Average 2020–2025

    50 °F

  • Average High 2020–2025

    61.2 °F
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