James Bay Weather Forecast

    • 76
    • 85

    Chance Thunderstorms

    • 79
    • 86

    Slight Chance Thunderstorms

    • 79
    • 87

    Mostly Sunny

    • 76
    • 88

    Mostly Sunny

    • 72
    • 86

    Mostly Sunny

    • 71
    • 83

    Mostly Sunny

    • 70
    • 80

    Mostly Sunny

Today 5 Sep Lake Mead National Recreation Area

Partly sunny with a 20 percent chance of Thunderstorms. Highs around 93 at hoover dam. Around 98 in Laughlin. South Winds 5 to 15 Mph.

Tonight 5 Sep Lake Mead National Recreation Area

Partly cloudy with a 20 percent chance of Thunderstorms. Lows around 75 at hoover dam. Around 81 in Laughlin. South Winds up to 10 Mph.

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James Bay Temperature Statistics

September Temperature

Boulder City Municipal Airport (18.6 miles)

  • Lowest 1 September, 2025

    77 °F

  • Average September

    89.4 °F

  • Highest 1 September, 2025

    105.8 °F

Climate (2020–Present)

Boulder City Municipal Airport (18.6 miles)

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  • Average Low 2020–2025

    57.4 °F

  • Average 2020–2025

    69.7 °F

  • Average High 2020–2025

    80.8 °F
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