South Dewees Island Weather Forecast

    • 74
    • 84

    Chance Thunderstorms

    • 73
    • 88

    Slight Chance Thunderstorms

    • 72
    • 86

    Slight Chance Thunderstorms

    • 71
    • 83

    Slight Chance Thunderstorms

    • 71
    • 83

    Chance Rain Showers

    • 71
    • 82

    Chance Thunderstorms

Today 24 Aug Charleston

Mostly cloudy in the Morning, then becoming partly sunny. A chance of Showers. A slight chance of Thunderstorms in the Morning, then a chance of Thunderstorms in the afternoon. Highs in the mid 80s. North Winds around 5 Mph. Chance of rain 50 percent.

Tonight 24 Aug Charleston

Mostly cloudy with a chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Lows in the lower 70s. Southwest Winds around 5 Mph. Chance of rain 50 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

South Dewees Island Temperature Statistics

August Temperature

Mount Pleasant Regional-Faison Field (5 miles)

  • Lowest 3 August, 2025

    69.8 °F
  • Average August

    79.6 °F
  • Highest 1 August, 2025

    95 °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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