Lewis and Clark Lake Weather Forecast

    • -6
    • 10

    Snow

    • 17
    • 22

    Mostly Sunny

    • 22
    • 37

    Partly Sunny

    • 29
    • 44

    Mostly Cloudy

    • 24
    • 50

    Partly Sunny

    • 22
    • 36

    Partly Sunny

Today 13 Dec Knox

Mostly cloudy. A chance of snow in the morning. Total snow accumulation of 1 to 3 Inches possible. Much cooler. Near steady temperature around 9 above. Northeast Winds 5 to 10 Mph, becoming north 10 to 15 Mph in the afternoon. Chance of snow 50 percent. Wind chill Values as low as 10 below.

Tonight 13 Dec Knox

Partly cloudy. Colder with Lows around 3 below. Northwest Winds 5 to 10 Mph, becoming west after midnight. Wind chill Values as low as 15 below.

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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 3 December, 2025

    -4 °F

  • Average December

    23.6 °F

  • Highest 9 December, 2025

    46.9 °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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