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CHARLESTON 7 Day Forecast

NWS Forecast for: Charleston SC Issued by: National Weather Service Charleston, SC Last Update: 2:12 pm EDT Aug 27, 2026

This Afternoon High: 88 °F Chance T-storms Tonight Low: 75 °F Mostly Cloudy then Chance T-storms Friday High: 89 °F Chance T-storms then T-storms Likely Friday Night Low: 73 °F Chance T-storms then Showers Likely Saturday High: 87 °F Showers Likely Saturday Night Low: 75 °F Chance T-storms then Chance Showers Sunday High: 89 °F Chance Showers then Chance T-storms Sunday Night Low: 75 °F Chance T-storms Monday High: 91 °F Chance T-storms

This Afternoon: A 40 percent chance of showers and thunderstorms, mainly before 5pm. Mostly sunny, with a high near 88. South wind around 8 mph. Tonight: A slight chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 75. South wind 3 to 7 mph. Chance of precipitation is 40%. Friday: Showers and thunderstorms likely, mainly between 4pm and 5pm. Partly sunny, with a high near 89. Calm wind becoming south 5 to 8 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. Friday Night: A chance of showers and thunderstorms before 1am, then showers likely and possibly a thunderstorm between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 73. Light southwest wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Saturday: Showers likely and possibly a thunderstorm. Partly sunny, with a high near 87. Calm wind becoming south around 5 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. Saturday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 75. Sunday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89. Sunday Night: A chance of thunderstorms before 8pm, then a slight chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 75. Chance of precipitation is 30%. Monday: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 91. Monday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 75. Tuesday: Sunny, with a high near 93. Tuesday Night: Mostly clear, with a low around 76. Wednesday: Sunny, with a high near 93.

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

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