Charleston, S.C. – Thunderstorms are expected to disrupt parts of South Carolina this weekend, with the strongest risk arriving in the Charleston area Saturday afternoon and continuing through Monday. Showers and storms could bring heavy rainfall, frequent lightning, and localized flooding on roads during peak travel hours.
According to the National Weather Service, storm chances increase sharply Saturday, with rainfall totals between a tenth and a quarter inch possible, and higher amounts under stronger cells. The most active period is likely Saturday afternoon into Sunday evening, when scattered thunderstorms could produce gusty winds and slow drivers on I-26, U.S. 17, and Charleston-area bridges.
Beachgoers in Folly Beach, Isle of Palms, and Sullivan’s Island should remain cautious, as lightning threats and sudden downpours could force evacuations from the shore. Event organizers across the Lowcountry are advised to prepare backup plans, as rainfall could intensify during outdoor gatherings.
Showers are expected to linger into early Monday, with conditions improving by Tuesday. Residents are urged to keep devices charged in case of isolated power outages and to avoid flooded roadways.
More showers remain possible midweek, but widespread storms are not expected after Monday.
Five Day Forecast for Charleston, SC
- Friday: Mostly sunny, high near 86. Isolated afternoon storms possible.
- Saturday: Showers and thunderstorms likely, high near 80.
- Sunday: Storms possible, then scattered showers. High near 81.
- Monday: Showers likely with storms possible early. High near 78.
- Tuesday: Mostly sunny with a slight chance of showers. High near 82.
