Columbia, South Carolina – Above-average temperatures are expected to dominate South Carolina from August 5–9, bringing a prolonged stretch of summer heat while rainfall remains close to seasonal averages. Rather than a widespread wet pattern, the state is likely to experience the typical isolated to scattered showers and thunderstorms common during early August, with many communities staying dry on any given day.
According to the Climate Prediction Center’s 6–10 Day Outlook issued July 30, South Carolina is favored to experience above-normal temperatures, while near-normal precipitation is expected across the state. The climate signal points toward persistent warmth and humidity without a strong indication of either unusually wet or unusually dry conditions.
Columbia and Charleston are expected to see temperatures climb above early August averages, while communities including Greenville, Myrtle Beach, Florence, Spartanburg, Rock Hill, Hilton Head Island, and Sumter should experience hot afternoons with only isolated to scattered thunderstorm development. Rainfall will likely be uneven, with some locations receiving brief downpours while neighboring communities remain dry. Travelers may encounter occasional reduced visibility during heavier showers along Interstates 20, 26, 77, 85, and U.S. Highway 17.
The combination of above-average temperatures and high humidity will create muggy conditions statewide, increasing the risk of heat-related illnesses for anyone spending extended time outdoors. Residents should stay hydrated, take frequent breaks in air-conditioned spaces, and limit strenuous outdoor activities during the hottest part of the afternoon.
The overall pattern favors continued above-average warmth through August 9, with precipitation generally remaining near climatological averages across South Carolina. Additional outlooks from the National Weather Service will provide greater detail on the timing and coverage of any isolated thunderstorm activity as the period approaches.
