Gregg Lake Weather Forecast

    • 68
    • 96

    Mostly Sunny

    • 71
    • 105

    Slight Chance Thunderstorms

    • 69
    • 105

    Hot

    • 65
    • 102

    Chance Thunderstorms

    • 64
    • 96

    Chance Thunderstorms

    • 64
    • 96

    Chance Thunderstorms

    • 63
    • 95

    Slight Chance Thunderstorms

Today 24 Jul Box Butte

Sunny, warmer with Highs in the mid 90s. Northwest Winds around 5 Mph.

Tonight 24 Jul Box Butte

Mostly clear. Lows in the mid 60s. East Winds 5 to 10 Mph, becoming south after midnight.

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  • Temperature Real-Time

Gregg Lake Temperature Statistics

July Temperature

Chadron, Chadron Municipal Airport (29.2 miles)

  • Lowest 1 July, 2026

    53.1 °F

  • Average July

    81.6 °F

  • Highest 19 July, 2026

    102.9 °F

Climate (2021–2026)

Chadron, Chadron Municipal Airport (29.2 miles)

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  • Average Low 2021–2026

    35.9 °F

  • Average 2021–2026

    50.2 °F

  • Average High 2021–2026

    64.4 °F
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