Grand Strand faces hot Sunday with heat indices over 100 and scattered late storms
A Heat Advisory remains in effect until 8:00 p.m. on Sunday, August 16, with feels-like temperatures topping 100 degrees and scattered afternoon storms expected.
Why this matters locally
High humidity and feels-like temperatures reaching 105 degrees create heat risks for beachgoers and outdoor workers, while afternoon storms could briefly disrupt outdoor activities.
Grand Strand residents, visitors, and weekend outdoor planners should prepare for another day of high heat and afternoon storm activity on Sunday, August 16, 2026. A Heat Advisory remains in effect across the region through 8:00 p.m. as heat index values climb into dangerous territory.
Feels-like temperatures are expected to reach between 100 and 105 degrees across both coastal locations and inland communities. While ambient air temperatures may be slightly lower than earlier in the week, high humidity levels will create oppressive conditions for anyone spending extended periods outdoors.
In addition to the high heat, isolated scattered thunderstorms are forecast to develop later in the day. Meteorologists expect scattered activity to begin firing up around 3:00 p.m. or 4:00 p.m. and linger into the evening hours. While these afternoon storms will be far less severe and less widespread than Saturday's heavy downpours—which brought over two inches of rain, lightning, strong winds, and hail to parts of the Grand Strand and Pee Dee—a few localized showers and rumbles of thunder remain likely.
Forecasters note that Sunday will not be a complete washout, so residents do not need to cancel outdoor plans entirely. However, anyone planning beach outings, boating, or outdoor recreation should take common-sense safety measures against the heat. Drink plenty of water, seek shade or air-conditioned spaces during peak afternoon heat, and remain weather-aware if localized storms pop up in your area.
Quick facts
- Event date: Sunday, August 16, 2026
- Heat Advisory: In effect until 8:00 p.m.
- Peak Heat Index: 100 to 105 degrees
- Storm timing: Beginning around 3:00 p.m. to 4:00 p.m.
Community brief · prepared from WMBF News — Grand Strand material · original source
