The week ends with the Independence holiday and mostly quiet weather. Still, we closely monitor the chance of tropical development near the coast over the weekend and into early next week.
Here´s the outlook for July 4th across South Carolina.
— SCETV (@SCETV) July 3, 2025
A scattered shower is possible between Columbia and Florence, but overall, the weather is quiet.
We continue to monitor the potential for a tropical system to develop near our coast late this weekend into early next week. pic.twitter.com/a8JYHTCbIn
Forecast for the 4th of July celebrations
Across Upstate South Carolina, July 4th will stay partly to mostly cloudy. Still, most of the clouds will gradually disipate in the afternoon and skies will be partly to mostly clear by 8 p.m. Temperatures should be around the mid-to upper-80s as they come down from maximums in the mid-90s.
Mostly sunny conditions will prevail over the Midlands, with highs in the mid-to-upper 90s. Around 8 p.m., the temperatures in cities like Columbia and Florence are expected to be 85 degrees with light east winds. However, the humidity will still be present, making the temperatures feel like they are in the low-90s. Make sure to dress accordingly, wear sunscreen, and stay hydrated with water as you celebrate July 4th.
For the Lowcountry and Pee Dee, the 4th of July will start mainly cloudy with a few light showers moving by. The winds will remain gusty, reaching up to 25 mph in cities like Charleston, and slightly more north in Myrtle Beach, winds are expected to gust up to 15 mph at most during the afternoon and early evening. Highs will stay in the low to mid-90s, with the humidity making it feel as if the temperatures were in the triple digits. At 8 p.m., temperatures will be in the low 90s, feeling very muggy. Don't forget the bug spray!
Tropical update:
There is a medium chance of tropical development from the residual energy left by a cold front. The front is stalling out, and this will continue to increase the instability across much of the state. We do not expect this area to develop into a tropical system this week. The soonest this system could develop is on Saturday afternoon. The American GFS model shows the system developing near northeast Florida, but this is being extremely generous. On the other hand, the European model shows the system barely developing late on Sunday but not surviving for too long. A cold front is expected to exit the Great Lakes early next week, and ahead of it, a trough may either push this system away or absorb it.
We will continue to follow the evolution of this potential tropical system and bring you updates promptly.