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last updated at 3:50 PM on September 22, 2026

Charleston Weather Discussion

The latest forecast and discussion for the Charleston, SC metro area

Tuesday: Another warm and occasionally stormy day, but changes are afoot

/ September 21, 2026 at 11:09 PM

Low pressure aloft will drift northward into our neck of the woods on Tuesday, which should help kick up a little more in the way of showers and thunderstorms, especially in the afternoon and evening. It’ll be another warm and muggy start, with lows in the low to mid-70s across the area to start the day. Some guidance suggests storms appear possible near the coast to start the day, moving inland with time as the seabreeze pushes inland. The main concerns will be the potential for isolated flooding due to heavy rain from slow-moving storms and the risk for storms to produce strong wind gusts.

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Charleston Area NWS Forecast

Forecast for Charleston updated at 2:17 PM on September 22, 2026