Aug 7, 2023 at 5:56 PM
The heat advisory has been extended until 7PM given plentiful heat indices still at 110° or beyond.
Forecast explanations, atmospheric science, and other cool weather-related stuff for Charleston, SC
The heat advisory has been extended until 7PM given plentiful heat indices still at 110° or beyond.

The week ahead gets off to a hot start as westerly winds keep the seabreeze close to the coast for much of the day, driving highs into the mid-to-upper 90s on Monday afternoon. Mix in low-70s dewpoints and heat indices will peak above 105° in the afternoon. From there, a thunderstorm complex will approach the area from the northwest, but it should get here toward the evening and be in a weakening phase as a result. A strong wind gust or two can’t be ruled out, though, especially the further inland you are.
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