South Dewees Island Weather Forecast

    • 77
    • 86

    Slight Chance Thunderstorms

    • 77
    • 86

    Thunderstorms Likely

    • 76
    • 86

    Thunderstorms Likely

    • 76
    • 87

    Chance Thunderstorms

    • 77
    • 89

    Chance Thunderstorms

    • 76
    • 87

    Chance Thunderstorms

    • 76
    • 86

    Chance Thunderstorms

Today 30 Jun Charleston

Sunny with a slight chance of Showers and Thunderstorms. Highs in the upper 80s. South Winds 10 to 15 Mph. Chance of rain 20 percent.

Tonight 30 Jun Charleston

Mostly clear. A slight chance of Showers and Thunderstorms this evening. Lows in the mid 70s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Dewees Island Temperature Statistics

June Temperature

Mount Pleasant Regional-Faison Field (5 miles)

  • Lowest 2 June, 2025

    64.4 °F

  • Average June

    80.7 °F

  • Highest 24 June, 2025

    96.8 °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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