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last updated at 8:45 AM on May 19, 2026

Charleston Weather Discussion

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

Tuesday: Plenty of sunshine — and plenty warm, too

/ May 18, 2026 at 5:53 PM

More sunshine is in the offing for Tuesday with high pressure in continued control of our weather. The air will have a bit of an early summer feel to it with lows bottoming out in the mid-60s, warming to the upper 80s and perhaps approaching 90° in the afternoon. Dewpoints will mix down to the mid-60s in the afternoon, so while it won’t be excruciatingly humid, there will definitely be a bit more heaviness to the air, so to speak.

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Charleston Area NWS Forecast

Forecast for Charleston updated at 5:17 AM on May 19, 2026