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CHARLESTON 7 Day Forecast

NWS Forecast for: Charleston SC Issued by: National Weather Service Charleston, SC Last Update: 7:23 pm EDT Aug 31, 2026

Tonight Low: 75 °F Mostly Clear Tuesday High: 90 °F Mostly Sunny Tuesday Night Low: 76 °F Partly Cloudy Wednesday High: 90 °F Mostly Sunny Wednesday Night Low: 76 °F Partly Cloudy Thursday High: 90 °F Slight Chance T-storms Thursday Night Low: 76 °F Partly Cloudy Friday High: 91 °F Slight Chance T-storms Friday Night Low: 76 °F Partly Cloudy

Tonight: Mostly clear, with a low around 75. East wind around 6 mph becoming calm in the evening. Tuesday: Mostly sunny, with a high near 90. Heat index values as high as 102. Light and variable wind becoming east 5 to 8 mph in the morning. Tuesday Night: Partly cloudy, with a low around 76. Light and variable wind. Wednesday: Mostly sunny, with a high near 90. Heat index values as high as 102. Calm wind becoming southeast 5 to 8 mph in the afternoon. Wednesday Night: Partly cloudy, with a low around 76. Southeast wind around 5 mph becoming calm in the evening. Thursday: A slight chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 90. Chance of precipitation is 20%. Thursday Night: Partly cloudy, with a low around 76. Friday: A 20 percent chance of showers and thunderstorms. Sunny, with a high near 91. Friday Night: Partly cloudy, with a low around 76. Saturday: A 40 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 94. Saturday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75. Sunday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87. Sunday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Labor Day: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.

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

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