High Humidity and Pop-Up Storm Chances Continue Across the Grand Strand
High humidity is fueling scattered storms across the Grand Strand this Sunday, with muggy conditions and pop-up rain chances expected to persist into the workweek.

Why this matters locally
High heat indices above 100 degrees paired with pop-up storms will impact outdoor work, beach plans, and daily travel across North Myrtle Beach and surrounding inland communities.
Elevated humidity and scattered storm chances are settling over the Grand Strand to close out the weekend, with muggy conditions expected to persist into the upcoming workweek. Local forecasters indicate that while widespread severe weather or all-day washouts are not anticipated, increasing moisture across coastal South Carolina will fuel scattered daily precipitation.
For Sunday, the highest likelihood of downpours and pop-up thunderstorms along the coast is concentrated from the morning through the midday hours. As the day progresses into the afternoon and evening, the primary storm focus is expected to shift further inland. Temperatures are forecast to remain in the low 80s directly along the beach due to cloud cover and rain, while inland areas will see daytime highs reaching the upper 80s. Despite the slightly cooler air temperatures, high humidity will push heat index values past the 100-degree mark across the region.
The elevated moisture levels are expected to remain in place through much of the week ahead. While no major organized storm systems are currently moving into the area, the combination of summer heat and high humidity will maintain a daily chance for localized heavy downpours and quick-moving thunderstorms.
Residents, commuters, and outdoor workers heading back to work on Monday should prepare for continued muggy weather. Local officials and meteorologists advise keeping umbrellas nearby and taking sensible steps to handle the heat index, including staying well-hydrated when spending extended periods outdoors. Visitors and boaters along the Grand Strand should also monitor shifting coastal weather conditions during morning and midday outdoor activities.
Quick facts
- Coastal storm risk: Sunday morning to midday
- Inland storm risk: Sunday afternoon and evening
- Coastal temperatures: Low 80s at the beach
- Inland temperatures: Upper 80s
- Heat index: Exceeding 100 degrees
Community brief · prepared from WMBF News — Grand Strand material · original source

