Lewis and Clark Lake Weather Forecast

    • 45
    • 65

    Sunny

    • 42
    • 68

    Sunny

    • 46
    • 61

    Mostly Sunny

    • 51
    • 67

    Mostly Sunny

    • 51
    • 72

    Mostly Sunny

    • 58
    • 72

    Partly Sunny

    • 60
    • 75

    Chance Rain Showers

Today 17 Oct Knox

Sunny, Breezy, warmer. Near steady temperature in the lower 60s. South Winds 20 to 25 Mph with Gusts up to 35 Mph.

Tonight 17 Oct Knox

Clear. Lows in the lower 40s. South Winds 15 to 20 Mph with Gusts up to 35 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lewis and Clark Lake Temperature Statistics

October Temperature

Yankton, Chan Gurney Municipal Airport (8.1 miles)

  • Lowest 14 October, 2026

    37.9 °F

  • Average October

    60.9 °F

  • Highest 10 October, 2026

    91.9 °F

Climate (2021–2026)

Yankton, Chan Gurney Municipal Airport (8.1 miles)

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  • Average Low 2021–2026

    39.4 °F

  • Average 2021–2026

    50.5 °F

  • Average High 2021–2026

    61.7 °F
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