Extreme Heat and Saturday Storm Threat Headline Labor Day Weekend Forecast

Grand Strand residents and holiday weekend visitors are facing severe weather and extreme heat across the area starting Friday, September 4, 2026, and lasting through Labor Day, Monday, September 7. A heat advisory is in effect as temperatures reach the low 90s along the coast and the upper 90s inland. High humidity levels will push the feels-like heat index between 105 and 110 degrees on both Friday and Saturday afternoon.

Conditions are expected to turn stormy on Saturday, September 5. While the morning and early afternoon will bring sunshine and intense heat, severe weather risks will increase by late afternoon and into the evening. Weather forecasts place the region under a Level 2 risk for severe weather as storm clusters develop to the north and northwest and move south toward the coast. Potential threats from these storms include dangerous lightning, strong wind gusts, localized heavy downpours, and isolated hail.

Unsettled weather will linger into Sunday, September 6, as a slow-moving cold front keeps a 40 percent chance of scattered afternoon showers and thunderstorms in the forecast. High temperatures on Sunday are expected to settle in the mid-to-upper 80s.

A noticeable shift in the weather pattern arrives by Labor Day, Monday, September 7. The front will bring drier air, lower humidity, and comfortable high temperatures in the mid-80s, offering favorable conditions for outdoor activities and beach outings.

Anyone spending time outdoors over the holiday weekend should take precautions against the excessive heat by staying hydrated, taking frequent breaks in shaded or air-conditioned areas, and monitoring afternoon radar conditions closely before heading out for evening plans.