McCullough Mountain Weather Forecast

    • 59
    • 78

    Mostly Cloudy

    • 58
    • 75

    Partly Sunny

    • 59
    • 78

    Mostly Sunny

    • 60
    • 78

    Mostly Sunny

    • 58
    • 79

    Sunny

    • 56
    • 76

    Mostly Sunny

    • 57
    • 75

    Partly Sunny

Today 21 Mar Southern Clark County

Mostly sunny. Highs 90 to 93. Southwest Winds 10 to 15 Mph.

Tonight 21 Mar Southern Clark County

Mostly cloudy in the evening then becoming partly cloudy. Lows 63 to 66. West Winds 5 to 15 Mph.

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McCullough Mountain Temperature Statistics

March Temperature

Las Vegas - Henderson Executive Airport (25.5 miles)

  • Lowest 8 March, 2026

    41 °F

  • Average March

    65.9 °F

  • Highest 19 March, 2026

    96.1 °F

Climate (2021–Present)

Las Vegas - Henderson Executive Airport (25.5 miles)

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  • Average Low 2021–2026

    57.7 °F

  • Average 2021–2026

    69 °F

  • Average High 2021–2026

    80 °F
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