Niobrara State Park Weather Forecast

    • 19
    • 23

    Chance Snow

    • 29
    • 41

    Partly Sunny

    • 22
    • 50

    Mostly Cloudy

    • 18
    • 31

    Chance Snow

    • 3
    • 26

    Chance Snow

    • -2
    • 12

    Mostly Cloudy

Today 7 Dec Knox

Mostly cloudy. A chance of snow this afternoon. Little or no snow accumulation. Cooler with Highs in the lower 20s. Northeast Winds 5 to 10 Mph, becoming southeast this afternoon. Chance of snow 50 percent.

Tonight 7 Dec Knox

Mostly cloudy with a chance of Flurries in the Evening, then partly cloudy after midnight. Near steady temperature around 19. South Winds 10 to 15 Mph.

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Niobrara State Park Temperature Statistics

December Temperature

Yankton, Chan Gurney Municipal Airport (36 miles)

  • Lowest 3 December, 2025

    -4 °F

  • Average December

    20.8 °F

  • Highest 5 December, 2025

    37.9 °F

Climate (2020–Present)

Yankton, Chan Gurney Municipal Airport (36 miles)

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  • Average Low 2020–2025

    39.3 °F

  • Average 2020–2025

    50.2 °F

  • Average High 2020–2025

    61.4 °F
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