South Dewees Island Weather Forecast

    • 76
    • 86

    Thunderstorms Likely

    • 77
    • 88

    Thunderstorms Likely

    • 77
    • 88

    Chance Thunderstorms

    • 77
    • 89

    Chance Thunderstorms

    • 77
    • 91

    Chance Thunderstorms

    • 78
    • 89

    Chance Thunderstorms

Today 9 Jul Charleston

Mostly sunny. A slight chance of Showers and Thunderstorms this Morning, then Showers and Thunderstorms likely this afternoon. Highs in the upper 80s. South Winds 10 to 15 Mph. Chance of rain 70 percent.

Tonight 9 Jul Charleston

Partly cloudy. A chance of Showers and Thunderstorms, mainly in the evening. Lows in the mid 70s. South Winds 10 to 15 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Dewees Island Temperature Statistics

July Temperature

Mount Pleasant Regional-Faison Field (5 miles)

  • Lowest 5 July, 2025

    73.4 °F
  • Average July

    80.8 °F
  • Highest 7 July, 2025

    93.2 °F

Climate (2020–Present)

Mount Pleasant Regional-Faison Field (5 miles)

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  • Average Low 2020–2025

    58.6 °F
  • Average 2020–2025

    66.6 °F
  • Average High 2020–2025

    75.5 °F
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