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.
South Dewees Island Temperature Statistics
August Temperature
Mount Pleasant Regional-Faison Field (5 miles)
Lowest 3 August, 2025
69.8 °FAverage August
79.6 °FHighest 1 August, 2025
95 °F
Climate (2020–Present)
Mount Pleasant Regional-Faison Field (5 miles)
Average Low 2020–2025
58.6 °FAverage 2020–2025
66.6 °FAverage High 2020–2025
75.5 °F