Charleston, SC – Extreme heat will grip South Carolina’s coastal counties through 8 p.m. Saturday, with heat index values reaching up to 113 degrees in some areas east of I-95.
According to the National Weather Service in Charleston, a Heat Advisory is in effect from 11 a.m. to 8 p.m. today, as high temperatures in the upper 90s and oppressive humidity push “feels-like” temps into the danger zone. Heat index values are expected to range from 108 to 110 degrees, with localized spikes in areas like Charleston, Beaufort, and Hinesville.
Counties along and east of I-95, including Jasper, Colleton, and Chatham, are under the advisory. Residents are urged to limit outdoor activity, stay hydrated, and seek air conditioning. The NWS has placed the region in the “Red” risk category, meaning the heat poses a serious threat to those without effective cooling or adequate hydration.
Thunderstorm relief will be limited, as isolated cells remain close to the coast and are unlikely to offer widespread cooling inland.
The Heat Advisory remains in effect through 8 p.m., with continued high heat expected into Sunday. More alerts may follow if conditions persist.
📅 Five-Day Forecast for Charleston, SC
- Saturday: High 97°F, Heat Index 113°F, isolated coastal storms, Heat Advisory until 8 PM
- Sunday: High 95°F, humid, slight chance of afternoon storms
- Monday: High 94°F, partly cloudy, evening thunderstorms possible
- Tuesday: High 92°F, scattered storms, muggy conditions
- Wednesday: High 91°F, continued humidity, showers late in day
