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CHARLESTON 7 Day Forecast

NWS Forecast for: Charleston SC Issued by: National Weather Service Charleston, SC Last Update: 8:32 am EDT Jul 28, 2026

Today High: 94 °F Mostly Sunny Tonight Low: 81 °F Partly Cloudy Wednesday High: 96 °F Mostly Sunny then Chance T-storms Wednesday Night Low: 76 °F Chance T-storms then Mostly Clear Thursday High: 94 °F Sunny Thursday Night Low: 76 °F Mostly Clear Friday High: 93 °F Sunny Friday Night Low: 78 °F Partly Cloudy Saturday High: 92 °F Mostly Sunny then Chance T-storms

Heat Advisory Today: Mostly sunny, with a high near 94. Heat index values as high as 110. Light southwest wind becoming south 8 to 13 mph in the morning. Tonight: Partly cloudy, with a low around 81. Southwest wind 9 to 14 mph, with gusts as high as 23 mph. Wednesday: A 30 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 96. Heat index values as high as 110. West wind 7 to 9 mph. Wednesday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 76. West wind around 5 mph becoming calm in the evening. Thursday: Sunny, with a high near 94. North wind 5 to 7 mph. Thursday Night: Mostly clear, with a low around 76. Friday: Sunny, with a high near 93. Friday Night: Partly cloudy, with a low around 78. Saturday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Saturday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 78. Sunday: Showers and thunderstorms likely. Partly sunny, with a high near 91. Chance of precipitation is 70%. Sunday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 77. Chance of precipitation is 60%. Monday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.

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

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