Beaver Lake Weather Forecast

    • 74
    • 92

    Partly Sunny

    • 67
    • 93

    Rain Showers Likely

    • 67
    • 83

    Slight Chance Thunderstorms

    • 69
    • 86

    Mostly Sunny

    • 72
    • 92

    Mostly Sunny

    • 74
    • 94

    Mostly Sunny

    • 70
    • 96

    Mostly Sunny

Today 22 Jul Yankton

Mostly sunny. Highs in the lower 90s. South Winds 15 to 20 Mph with Gusts up to 30 Mph. Heat index Values up to 106.

Tonight 22 Jul Yankton

Partly cloudy. Lows in the mid 70s. South Winds 15 to 20 Mph. Heat index Values up to 105 early this evening.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Beaver Lake Temperature Statistics

July Temperature

Yankton, Chan Gurney Municipal Airport (7.5 miles)

  • Lowest 17 July, 2025

    55.7 °F

  • Average July

    75.1 °F

  • Highest 3 July, 2025

    94.6 °F

Climate (2020–Present)

Yankton, Chan Gurney Municipal Airport (7.5 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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