Folly River - Long Island Weather Forecast

    • 75
    • 87

    Becoming Sunny

    • 78
    • 89

    Sunny

    • 76
    • 87

    Chance Thunderstorms

    • 77
    • 89

    Slight Chance Thunderstorms

    • 77
    • 88

    Chance Thunderstorms

    • 77
    • 86

    Rain Showers Likely

    • 76
    • 85

    Rain Showers Likely

Today 17 Aug Charleston

Mostly sunny with a slight chance of Showers and Thunderstorms. Highs in the upper 80s. East Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 17 Aug Charleston

Mostly clear. Lows in the lower 70s. Southeast Winds around 5 Mph this Evening, becoming light and variable.

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Folly River - Long Island Temperature Statistics

August Temperature

Charleston Executive Airport (5 miles)

  • Lowest 3 August, 2025

    71.6 °F

  • Average August

    80 °F

  • Highest 1 August, 2025

    93.2 °F

Climate (2020–Present)

Charleston Executive Airport (5 miles)

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  • Average Low 2020–2025

    59.1 °F

  • Average 2020–2025

    67.4 °F

  • Average High 2020–2025

    76.1 °F
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