Gregg Lake Weather Forecast

    • 26
    • 55

    Mostly Sunny

    • 31
    • 60

    Mostly Sunny

    • 31
    • 60

    Partly Sunny

    • 22
    • 63

    Breezy

    • 24
    • 40

    Partly Sunny

    • 28
    • 61

    Mostly Cloudy

Today 14 Dec Box Butte

Partly cloudy. Not as cool with Highs in the lower 50s. South Winds 10 to 15 Mph. Wind chill Values as low as 1 below early this morning.

Tonight 14 Dec Box Butte

Mostly clear. Not as cold with Lows in the upper 20s. West Winds around 10 Mph.

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Gregg Lake Temperature Statistics

December Temperature

Chadron, Chadron Municipal Airport (29.2 miles)

  • Lowest 1 December, 2025

    0 °F

  • Average December

    32.3 °F

  • Highest 11 December, 2025

    66.9 °F

Climate (2020–Present)

Chadron, Chadron Municipal Airport (29.2 miles)

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  • Average Low 2020–2025

    35.5 °F

  • Average 2020–2025

    49.5 °F

  • Average High 2020–2025

    63.6 °F
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