Charleston, S.C. – The Lowcountry will face unsettled weather early this week as daily thunderstorm chances return, beginning Monday, September 8. Charleston could see gusty winds, heavy downpours, and lightning during afternoon and evening hours before a shift to drier conditions late in the week.
According to the National Weather Service, Monday brings a 30 percent chance of showers and storms after 11 a.m., with highs near 79. Winds from the northeast will pick up between 14 and 17 mph, gusting as high as 25 mph during storms. Rain chances rise again Tuesday and Wednesday, each carrying the potential for scattered thunderstorms across coastal South Carolina.
Travelers along I-26, U.S. 17, and the Arthur Ravenel Jr. Bridge should prepare for slower commutes during downpours, where ponding water and low visibility may reduce safety. Beachgoers and boaters are also urged to monitor conditions closely, as storms will bring lightning and gusty winds across Charleston Harbor and barrier islands.
By Thursday, skies begin to clear, with sunny conditions and highs in the low 80s expected to close out the workweek. NOAA’s precipitation outlook keeps South Carolina trending near or slightly below normal into mid-September, suggesting the stormy stretch will not persist.
The National Weather Service advises residents to remain weather-aware through midweek before the return of more stable fall-like conditions.
Five Day Forecast for Charleston, SC
- Monday: Chance of thunderstorms, breezy, high 79.
- Tuesday: Chance of thunderstorms, high 79.
- Wednesday: Chance of thunderstorms, high 80.
- Thursday: Mostly sunny, high 82.
- Friday: Sunny, high 83.
