Black Mountain Weather Forecast

    • 76
    • 94

    Decreasing Clouds

    • 73
    • 92

    Slight Chance Thunderstorms

    • 75
    • 89

    Sunny

    • 76
    • 93

    Sunny

    • 77
    • 96

    Mostly Sunny

    • 77
    • 97

    Hot

Today 20 Sep Las Vegas Valley

Mostly sunny. Highs 91 to 95 on the west side. 95 to 98 on the east side. East Winds 5 to 10 Mph. Gusts up to 25 Mph in the afternoon.

Tonight 20 Sep Las Vegas Valley

Mostly cloudy in the evening then becoming partly cloudy. Lows 72 to 76 on the west side. 76 to 79 on the east side. Southeast Winds up to 10 Mph shifting to the northwest after midnight.

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  • Temperature Real-Time

Black Mountain Temperature Statistics

September Temperature

Boulder City Municipal Airport (8.1 miles)

  • Lowest 3 September, 2026

    68 °F

  • Average September

    87.3 °F

  • Highest 10 September, 2026

    105.8 °F

Climate (2021–2026)

Boulder City Municipal Airport (8.1 miles)

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  • Average Low 2021–2026

    58 °F

  • Average 2021–2026

    70.2 °F

  • Average High 2021–2026

    81.2 °F
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