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CHARLESTON 7 Day Forecast

NWS Forecast for: Charleston SC Issued by: National Weather Service Charleston, SC Last Update: 10:52 am EDT Aug 26, 2026

This Afternoon High: 88 °F Chance T-storms Tonight Low: 74 °F Chance T-storms Thursday High: 88 °F Chance T-storms then Showers Likely Thursday Night Low: 75 °F Chance T-storms then Showers Likely Friday High: 88 °F Showers Likely Friday Night Low: 74 °F Showers Saturday High: 87 °F Showers Saturday Night Low: 74 °F Chance T-storms Sunday High: 88 °F Chance T-storms

This Afternoon: A 50 percent chance of showers and thunderstorms before 5pm. Mostly cloudy, with a high near 88. South wind 5 to 8 mph. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Tonight: A 30 percent chance of showers and thunderstorms, mainly after midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 74. Southeast wind around 5 mph becoming calm in the evening. Thursday: A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 88. Calm wind becoming south 5 to 9 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Thursday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 75. Southwest wind 3 to 6 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Friday: Showers likely and possibly a thunderstorm before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 88. Calm wind becoming south 5 to 9 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Friday Night: Showers and possibly a thunderstorm. Low around 74. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Saturday: Showers and possibly a thunderstorm. High near 87. Chance of precipitation is 80%. Saturday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Sunday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Sunday Night: A 20 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 75. Monday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Monday Night: A chance of thunderstorms. Partly cloudy, with a low around 76. Chance of precipitation is 30%. Tuesday: A 20 percent chance of showers and thunderstorms. Sunny, with a high near 91.

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

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