Lake Henry Weather Forecast

    • 73
    • 93

    Decreasing Clouds

    • 69
    • 92

    Chance Thunderstorms

    • 67
    • 85

    Slight Chance Thunderstorms

    • 69
    • 88

    Partly Sunny

    • 71
    • 94

    Slight Chance Thunderstorms

    • 72
    • 96

    Slight Chance Thunderstorms

Today 22 Jul Bon Homme

Mostly sunny. Humid with Highs in the mid 90s. South Winds 15 to 20 Mph with Gusts up to 30 Mph. Heat index Values up to 109 in the afternoon.

Tonight 22 Jul Bon Homme

Mostly cloudy. Near steady temperature in the lower 70s. Southeast Winds 10 to 15 Mph.

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  • Temperature Real-Time

Lake Henry Temperature Statistics

July Temperature

Yankton, Chan Gurney Municipal Airport (22.4 miles)

  • Lowest 17 July, 2025

    55.7 °F

  • Average July

    75.2 °F

  • Highest 3 July, 2025

    94.6 °F

Climate (2020–Present)

Yankton, Chan Gurney Municipal Airport (22.4 miles)

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  • Average Low 2020–2025

    39 °F

  • Average 2020–2025

    50 °F

  • Average High 2020–2025

    61.3 °F
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