Lewis and Clark Lake Weather Forecast

    • 55
    • 65

    Chance Rain Showers

    • 56
    • 64

    Rain Showers

    • 47
    • 67

    Rain Showers

    • 39
    • 52

    Rain Showers Likely

    • 38
    • 52

    Partly Sunny

    • 39
    • 53

    Mostly Cloudy

    • 40
    • 53

    Mostly Cloudy

Today 31 Oct Knox

Partly sunny. Highs in the lower 50s.

Tonight 31 Oct Knox

Cloudy with a 40 percent chance of Showers. Lows in the mid 50s. South Winds around 10 Mph with Gusts up to 20 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 17 October, 2026

    33.1 °F

  • Average October

    57.3 °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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