Lake Powell Weather Forecast

    • 69
    • 83

    Rain Showers

    • 66
    • 87

    Mostly Sunny

    • 65
    • 86

    Mostly Sunny

    • 69
    • 86

    Mostly Sunny

    • 71
    • 88

    Slight Chance Thunderstorms

    • 71
    • 88

    Rain Showers Likely

Today 22 Aug James City

Mostly cloudy with a chance of Thunderstorms. Showers, mainly this morning. Highs in the lower 80s. South Winds around 5 Mph, becoming west around 5 Mph this afternoon. Chance of rain 80 percent.

Tonight 22 Aug James City

Partly cloudy with a chance of Showers. A chance of Thunderstorms, mainly in the evening. Lows in the upper 60s. North Winds around 5 Mph, becoming southwest after midnight. 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 12 August, 2026

    70.2 °F

  • Average August

    82.1 °F

  • Highest 10 August, 2026

    95.7 °F

Climate (2021–2026)

Williamsburg-Jamestown Airport (1.2 miles)

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  • Average Low 2021–2026

    53.8 °F

  • Average 2021–2026

    63 °F

  • Average High 2021–2026

    73.4 °F
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