Lewis and Clark Lake Weather Forecast

    • 67
    • 92

    Breezy

    • 60
    • 85

    Partly Sunny

    • 52
    • 79

    Partly Sunny

    • 51
    • 67

    Chance Rain Showers

    • 51
    • 64

    Rain Showers Likely

    • 47
    • 63

    Chance Rain Showers

    • 40
    • 59

    Partly Sunny

Today 10 Oct Knox

Sunny. Highs in the upper 50s.

Tonight 10 Oct Knox

Clear. Lows in the mid 60s. 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 2 October, 2026

    42.1 °F

  • Average October

    61.3 °F

  • Highest 6 October, 2026

    86 °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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