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CHARLESTON 7 Day Forecast

NWS Forecast for: Charleston SC Issued by: National Weather Service Charleston, SC Last Update: 8:32 pm EDT Aug 10, 2026

Tonight Low: 79 °F Partly Cloudy Tuesday High: 95 °F Sunny Tuesday Night Low: 79 °F Partly Cloudy Wednesday High: 96 °F Sunny Wednesday Night Low: 79 °F Partly Cloudy Thursday High: 97 °F Sunny Thursday Night Low: 81 °F Partly Cloudy Friday High: 97 °F Mostly Sunny then Slight Chance T-storms Friday Night Low: 80 °F Chance T-storms

Heat Advisory Tonight: Partly cloudy, with a low around 79. Southwest wind around 7 mph. Tuesday: Sunny, with a high near 95. Heat index values as high as 109. West wind 6 to 8 mph. Tuesday Night: Partly cloudy, with a low around 79. Southwest wind 6 to 8 mph. Wednesday: Sunny, with a high near 96. Heat index values as high as 112. West wind 6 to 8 mph. Wednesday Night: Partly cloudy, with a low around 79. West wind 5 to 8 mph. Thursday: Sunny, with a high near 97. Thursday Night: Partly cloudy, with a low around 81. Friday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 97. Friday Night: A 30 percent chance of showers and thunderstorms, mainly between 8pm and 2am. Partly cloudy, with a low around 80. Saturday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94. Saturday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 79. Sunday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94. Sunday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 80. Monday: Mostly sunny, with a high near 97.

Charleston SCSimilar City Names  32.79°N 80.01°W (Elev. 10 ft)

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