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CHARLESTON 7 Day Forecast

NWS Forecast for: Charleston SC Issued by: National Weather Service Charleston, SC Last Update: 8:30 pm EDT Aug 11, 2026

Tonight Low: 78 °F Mostly Clear Wednesday High: 96 °F Sunny Wednesday Night Low: 79 °F Mostly Clear Thursday High: 96 °F Sunny Thursday Night Low: 81 °F Partly Cloudy Friday High: 97 °F Mostly Sunny Friday Night Low: 81 °F Partly Cloudy Saturday High: 94 °F Mostly Sunny then Chance T-storms Saturday Night Low: 79 °F Chance T-storms

Heat Advisory Tonight: Mostly clear, with a low around 78. West wind around 7 mph. Wednesday: Sunny, with a high near 96. Heat index values as high as 110. West wind 6 to 8 mph. Wednesday Night: Mostly clear, with a low around 79. West wind 5 to 7 mph. Thursday: Sunny, with a high near 96. Heat index values as high as 113. West wind 5 to 8 mph. Thursday Night: Partly cloudy, with a low around 81. Southwest wind 6 to 8 mph. Friday: Mostly sunny, with a high near 97. Friday Night: Partly cloudy, with a low around 81. Saturday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 94. Saturday Night: A 40 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 79. Sunday: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 92. Sunday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 79. Monday: Sunny, with a high near 96. Monday Night: A 20 percent chance of showers and thunderstorms. Mostly clear, with a low around 80. Tuesday: A 30 percent chance of showers and thunderstorms. Sunny, with a high near 96.

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

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