Charleston Weather Blog

Forecast explanations, atmospheric science, and other cool weather-related stuff for Charleston, SC

Tuesday: Back to heat

/ August 11, 2025 at 7:45 PM

After a rambunctious Monday that featured widespread showers and thunderstorms leading to flash flooding downtown as well as a lightning strike caught on camera in Mt. Pleasant, the weather will return to a more traditional summertime pattern beginning Tuesday as Charleston County heads back to class. Temperatures will start on the mild side, generally in the mid-to-upper 70s, warming to the upper 80s in the afternoon. Mix in the continued humidity, and it’ll feel closer to 98°. Scattered showers and storms should fire again in the afternoon along and ahead of the seabreeze, and yes, there is a risk of heavy rain with these storms, but the risk for flash flooding will be a bit lower especially as storm motions should be a bit faster.

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