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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 Jun 12, 2026

Tonight Low: 79 °F Partly Cloudy Saturday High: 97 °F Mostly Sunny then Chance T-storms Saturday Night Low: 80 °F Chance T-storms Sunday High: 95 °F Sunny then Chance T-storms Sunday Night Low: 80 °F Chance T-storms then Partly Cloudy Monday High: 95 °F Sunny then Showers Likely Monday Night Low: 73 °F Showers Likely Tuesday High: 84 °F Showers Likely then T-storms Likely Tuesday Night Low: 73 °F T-storms Likely

Tonight: Partly cloudy, with a low around 79. Southwest wind 6 to 9 mph. Saturday: A 40 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 97. Heat index values as high as 110. Light and variable wind becoming south 5 to 9 mph in the afternoon. Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before midnight. Partly cloudy, with a low around 80. South wind 6 to 8 mph. Sunday: A 30 percent chance of showers and thunderstorms after 2pm. Increasing clouds, with a high near 95. Heat index values as high as 107. Southwest wind 6 to 13 mph, with gusts as high as 20 mph. Sunday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 80. Southwest wind 9 to 13 mph, with gusts as high as 20 mph. Monday: Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 95. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Monday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 60%. Tuesday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%. Tuesday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 73. Chance of precipitation is 60%. Wednesday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 87. Wednesday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 77. Thursday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91. Thursday Night: Partly cloudy, with a low around 79. Juneteenth: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.

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

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