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CHARLESTON 7 Day Forecast

NWS Forecast for: Charleston SC Issued by: National Weather Service Charleston, SC Last Update: 2:30 pm EDT Jul 6, 2026

This Afternoon High: 94 °F Slight Chance T-storms Tonight Low: 80 °F Slight Chance T-storms Tuesday High: 94 °F Mostly Sunny then Chance T-storms Tuesday Night Low: 81 °F Chance T-storms Wednesday High: 96 °F Sunny then Slight Chance T-storms Wednesday Night Low: 81 °F Partly Cloudy Thursday High: 97 °F Sunny Thursday Night Low: 81 °F Mostly Clear Friday High: 97 °F Sunny

Heat Advisory Heat Advisory This Afternoon: A slight chance of showers and thunderstorms between 3pm and 5pm. Sunny, with a high near 94. Heat index values as high as 109. South wind 11 to 13 mph. Chance of precipitation is 20%. Tonight: A slight chance of showers and thunderstorms before 4am, then a slight chance of showers and thunderstorms after 5am. Partly cloudy, with a low around 80. Southwest wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 20%. Tuesday: A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 94. Heat index values as high as 109. Southwest wind 6 to 13 mph, with gusts as high as 20 mph. Tuesday Night: A chance of showers and thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 81. Southwest wind 8 to 11 mph, with gusts as high as 20 mph. Chance of precipitation is 30%. Wednesday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 96. Southwest wind 7 to 11 mph. Wednesday Night: Partly cloudy, with a low around 81. Thursday: Sunny, with a high near 97. Thursday Night: Mostly clear, with a low around 81. Friday: Sunny, with a high near 97. Friday Night: Mostly clear, with a low around 81. Saturday: A 20 percent chance of showers and thunderstorms. Sunny, with a high near 98. Saturday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 79. Sunday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.

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

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