Lewis and Clark Lake Weather Forecast

    • 44
    • 64

    Rain Showers

    • 40
    • 56

    Rain Showers

    • 41
    • 56

    Rain Showers

    • 47
    • 61

    Slight Chance Rain Showers

    • 45
    • 66

    Partly Sunny

    • 52
    • 67

    Mostly Cloudy

    • 53
    • 70

    Chance Rain Showers

Today 24 Oct Knox

Mostly cloudy with a 50 percent chance of Showers. Highs in the lower 60s.

Tonight 24 Oct Knox

Showers likely. Near steady temperature in the mid 40s. North Winds 5 to 10 Mph. Chance of rain 70 percent.

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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 17 October, 2026

    33.1 °F

  • Average October

    58.8 °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

    39.5 °F

  • Average 2021–2026

    50.6 °F

  • Average High 2021–2026

    61.8 °F
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