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last updated at 2:45 AM on September 18, 2026

Charleston Weather Discussion

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

Friday & the weekend: Heat, humidity, and storm chances resume

/ September 17, 2026 at 10:57 PM

Summer is far from finished with us yet. After a couple days with relatively drier air and slightly cooler temperatures, we’re back to the 90s on Friday as surface winds swing around a little more westerly than we’ve seen the past few days. It should be a mostly sunny day, though clouds will increase later in the day with the potential for a shower or two to potentially migrate in from the north late. At least we get off to one more seasonable start as lows take one more trip to the mid-60s before a stretch of 70s lows kicks off Saturday.

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Charleston Area NWS Forecast

Forecast for Charleston updated at 2:12 AM on September 18, 2026