Charleston Harbor - Patriots Point Weather Forecast

    • 75
    • 84

    Chance Thunderstorms

    • 73
    • 83

    Chance Thunderstorms

    • 76
    • 82

    Rain Showers Likely

    • 74
    • 82

    Chance Thunderstorms

    • 74
    • 81

    Chance Thunderstorms

    • 73
    • 82

    Chance Rain Showers

Today 17 Sep Charleston

Mostly cloudy with a slight chance of Showers in the Morning, then partly sunny with a chance of Showers and Thunderstorms in the afternoon. Highs in the mid 80s. North Winds around 5 Mph, becoming east in the afternoon. Chance of rain 40 percent.

Tonight 17 Sep Charleston

A slight chance of Thunderstorms in the evening. Mostly cloudy with a slight chance of Showers. Lows in the lower 70s. Southwest Winds around 5 Mph, becoming west after midnight. Chance of rain 20 percent.

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Charleston Harbor - Patriots Point Temperature Statistics

September Temperature

Charleston Executive Airport (8.1 miles)

  • Lowest 4 September, 2021

    64.4 °F

  • Average September

    77.3 °F

  • Highest 6 September, 2021

    89.6 °F

Climate (2010–Present)

Charleston Executive Airport (8.1 miles)

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  • Average Low 2010–Present

    59.9 °F

  • Average 2010–Present

    67.9 °F

  • Average High 2010–Present

    76.1 °F
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