Lewis and Clark Lake Weather Forecast

    • 38
    • 46

    Mostly Cloudy

    • 19
    • 56

    Breezy

    • 7
    • 26

    Chance Snow

    • 13
    • 22

    Mostly Sunny

    • 18
    • 43

    Mostly Cloudy

    • 12
    • 33

    Mostly Cloudy

Today 26 Dec Knox

Patchy fog this morning. Mostly sunny. Highs in the lower 50s. Northwest Winds around 5 Mph, becoming south around 5 Mph this afternoon.

Tonight 26 Dec Knox

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the upper 30s. South Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lewis and Clark Lake Temperature Statistics

December Temperature

Yankton, Chan Gurney Municipal Airport (8.1 miles)

  • Lowest 14 December, 2025

    -13 °F

  • Average December

    26.8 °F

  • Highest 22 December, 2025

    55 °F

Climate (2020–Present)

Yankton, Chan Gurney Municipal Airport (8.1 miles)

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  • Average Low 2020–2025

    39.2 °F

  • Average 2020–2025

    50.2 °F

  • Average High 2020–2025

    61.4 °F
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