Lake Henry Weather Forecast

    • 59
    • 91

    Breezy

    • 53
    • 74

    Partly Sunny

    • 55
    • 66

    Rain Showers

    • 53
    • 74

    Partly Sunny

    • 51
    • 67

    Mostly Cloudy

    • 55
    • 70

    Slight Chance Rain Showers

Today 11 Sep Bon Homme

Mostly sunny and breezy. Highs around 90. South Winds 15 to 25 Mph with Gusts up to 45 Mph.

Tonight 11 Sep Bon Homme

Mostly clear. Lows in the upper 50s. West Winds 15 to 20 Mph with Gusts up to 35 Mph, becoming north 10 to 15 Mph with Gusts up to 25 Mph after midnight.

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  • Temperature Real-Time

Lake Henry Temperature Statistics

September Temperature

Yankton, Chan Gurney Municipal Airport (22.4 miles)

  • Lowest 9 September, 2026

    57 °F

  • Average September

    76.8 °F

  • Highest 4 September, 2026

    95 °F

Climate (2021–2026)

Yankton, Chan Gurney Municipal Airport (22.4 miles)

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  • Average Low 2021–2026

    39.4 °F

  • Average 2021–2026

    50.6 °F

  • Average High 2021–2026

    61.8 °F
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