Gregg Lake Weather Forecast

    • 51
    • 80

    Partly Sunny

    • 56
    • 84

    Mostly Cloudy

    • 54
    • 80

    Chance Thunderstorms

    • 55
    • 82

    Chance Rain Showers

    • 54
    • 85

    Chance Thunderstorms

    • 52
    • 84

    Chance Rain Showers

Today 25 Aug Box Butte

Partly sunny. Highs in the upper 70s. Southeast Winds around 5 Mph.

Tonight 25 Aug Box Butte

Partly cloudy this Evening, then becoming mostly cloudy. Lows in the lower 50s. South Winds 5 to 10 Mph.

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Gregg Lake Temperature Statistics

August Temperature

Chadron, Chadron Municipal Airport (29.2 miles)

  • Lowest 9 August, 2025

    50 °F

  • Average August

    76.2 °F

  • Highest 7 August, 2025

    104 °F

Climate (2020–Present)

Chadron, Chadron Municipal Airport (29.2 miles)

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  • Average Low 2020–2025

    35.3 °F

  • Average 2020–2025

    49.3 °F

  • Average High 2020–2025

    63.6 °F
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