Cottonwood Recreation Area Weather Forecast

    • 70
    • 85

    Thunderstorms Likely

    • 72
    • 92

    Rain Showers Likely

    • 62
    • 87

    Slight Chance Rain Showers

    • 59
    • 81

    Mostly Sunny

    • 63
    • 84

    Mostly Sunny

    • 63
    • 87

    Mostly Sunny

Today 6 Sep Yankton

Showers likely with a chance of Thunderstorms. Highs in the mid 80s. Southeast Winds 10 to 15 Mph. Chance of rain 70 percent.

Tonight 6 Sep Yankton

Mostly cloudy with a slight chance of Thunderstorms. A slight chance of Showers in the Evening, then a chance of Showers after midnight. Humid with Lows around 70. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 40 percent.

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  • Temperature Real-Time

Cottonwood Recreation Area Temperature Statistics

September Temperature

Yankton, Chan Gurney Municipal Airport (6.2 miles)

  • Lowest 2 September, 2026

    66.9 °F

  • Average September

    79.4 °F

  • Highest 3 September, 2026

    93 °F

Climate (2021–2026)

Yankton, Chan Gurney Municipal Airport (6.2 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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