McCullough Mountain Weather Forecast

    • 63
    • 78

    Rain Showers Likely

    • 63
    • 73

    Rain Showers

    • 64
    • 76

    Chance Thunderstorms

    • 66
    • 77

    Chance Rain Showers

    • 66
    • 78

    Chance Rain Showers

    • 66
    • 79

    Slight Chance Thunderstorms

    • 67
    • 81

    Slight Chance Thunderstorms

Today 25 Aug Southern Clark County

Mostly cloudy with a 50 percent chance of Thunderstorms. Highs 89 to 92. South Winds 5 to 15 Mph.

Tonight 25 Aug Southern Clark County

Mostly cloudy. Chance of Showers and slight chance of Thunderstorms in the Evening, then Showers likely and slight chance of Thunderstorms after midnight. Lows 71 to 74. Southwest Winds up to 10 Mph. Chance of precipitation 70 percent.

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McCullough Mountain Temperature Statistics

August Temperature

Las Vegas - Henderson Executive Airport (25.5 miles)

  • Lowest 18 August, 2025

    75 °F

  • Average August

    94.4 °F

  • Highest 12 August, 2025

    111 °F

Climate (2020–Present)

Las Vegas - Henderson Executive Airport (25.5 miles)

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  • Average Low 2020–2025

    57.3 °F

  • Average 2020–2025

    68.8 °F

  • Average High 2020–2025

    79.8 °F
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