Charleston Harbor - Patriots Point Weather Forecast

    • 77
    • 88

    Slight Chance Thunderstorms

    • 78
    • 89

    Chance Thunderstorms

    • 77
    • 83

    Thunderstorms Likely

    • 75
    • 82

    Rain Showers Likely

    • 76
    • 84

    Chance Thunderstorms

    • 74
    • 87

    Slight Chance Thunderstorms

Today 20 Aug Charleston

Mostly sunny. A slight chance of Showers and Thunderstorms this afternoon. Highs in the upper 80s. North Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

Tonight 20 Aug Charleston

Mostly cloudy in the Evening, then clearing. Lows in the mid 70s. North Winds 5 to 10 Mph with Gusts up to 20 Mph.

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Charleston Harbor - Patriots Point Temperature Statistics

August Temperature

Charleston Executive Airport (8.1 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 (8.1 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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