Lake Powell Weather Forecast

    • 73
    • 88

    Chance Thunderstorms

    • 72
    • 92

    Chance Thunderstorms

    • 71
    • 88

    Chance Rain Showers

    • 68
    • 86

    Mostly Sunny

    • 70
    • 89

    Mostly Sunny

    • 69
    • 89

    Slight Chance Thunderstorms

    • 68
    • 87

    Slight Chance Thunderstorms

Today 13 Aug James City

Mostly cloudy with a chance of Showers and Thunderstorms. Highs in the upper 80s. Southwest Winds 5 to 10 Mph. Chance of rain 40 percent.

Tonight 13 Aug James City

Partly cloudy with a chance of Showers. A chance of Thunderstorms, mainly in the evening. Humid with Lows in the lower 70s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lake Powell Temperature Statistics

August Temperature

Williamsburg-Jamestown Airport (1.2 miles)

  • Lowest 3 August, 2025

    59.9 °F

  • Average August

    72.1 °F

  • Highest 10 August, 2025

    83.1 °F

Climate (2020–Present)

Williamsburg-Jamestown Airport (1.2 miles)

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  • Average Low 2020–2025

    52.1 °F

  • Average 2020–2025

    61 °F

  • Average High 2020–2025

    71.3 °F
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