Cottonwood Recreation Area Weather Forecast

    • 75
    • 98

    Slight Chance Thunderstorms

    • 72
    • 97

    Hot

    • 70
    • 92

    Partly Sunny

    • 72
    • 95

    Chance Thunderstorms

    • 69
    • 92

    Rain Showers Likely

    • 67
    • 90

    Mostly Sunny

Today 26 Jul Yankton

Mostly cloudy in the Morning, then clearing. Hot with Highs around 100. South Winds 10 to 15 Mph. Gusts up to 30 Mph in the afternoon. Heat index Values up to 113 in the afternoon.

Tonight 26 Jul Yankton

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Humid with Lows in the mid 70s. South Winds 10 to 15 Mph, becoming west 5 to 10 Mph after midnight. Chance of rain 20 percent. Heat index Values up to 114 early in the evening.

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Cottonwood Recreation Area Temperature Statistics

July Temperature

Yankton, Chan Gurney Municipal Airport (6.2 miles)

  • Lowest 22 July, 2026

    59 °F

  • Average July

    77.9 °F

  • Highest 17 July, 2026

    97 °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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