South Dewees Island Weather Forecast

    • 79
    • 90

    Chance Thunderstorms

    • 76
    • 92

    Chance Thunderstorms

    • 74
    • 88

    Rain Showers Likely

    • 77
    • 87

    Mostly Cloudy

    • 79
    • 90

    Partly Sunny

    • 76
    • 90

    Chance Thunderstorms

    • 75
    • 87

    Rain Showers Likely

Today 14 Jun Charleston

Partly sunny with a chance of Showers and Thunderstorms. Highs in the mid 90s, except in the lower 90s near the coast. Heat index Values up to 111. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

Tonight 14 Jun Charleston

Mostly cloudy with a chance of Showers and Thunderstorms this Evening, then partly cloudy after midnight. Lows in the upper 70s. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 50 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 3 June, 2026

    55.4 °F

  • Average June

    76 °F

  • Highest 12 June, 2026

    95 °F

Climate (2021–Present)

Mount Pleasant Regional-Faison Field (5 miles)

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  • Average Low 2021–2026

    58.3 °F

  • Average 2021–2026

    66.4 °F

  • Average High 2021–2026

    75.4 °F
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