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CHARLESTON 7 Day Forecast

NWS Forecast for: Charleston SC Issued by: National Weather Service Charleston, SC Last Update: 2:37 pm EDT Sep 17, 2026

Tonight Low: 71 °F Mostly Clear Friday High: 91 °F Sunny Friday Night Low: 74 °F Partly Cloudy then Chance Showers Saturday High: 91 °F Mostly Sunny then Chance T-storms Saturday Night Low: 75 °F Chance T-storms Sunday High: 88 °F Chance Showers then Chance T-storms Sunday Night Low: 74 °F Chance T-storms then Partly Cloudy Monday High: 87 °F Chance Showers then Chance T-storms Monday Night Low: 73 °F Chance T-storms

Tonight: Mostly clear, with a low around 71. East wind 5 to 8 mph becoming calm in the evening. Friday: Sunny, with a high near 91. Calm wind becoming southeast around 5 mph in the afternoon. Friday Night: A slight chance of showers and thunderstorms before 2am, then a chance of showers between 2am and 3am. Partly cloudy, with a low around 74. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. Saturday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly cloudy through mid morning, then becoming sunny, with a high near 91. Calm wind becoming southeast 5 to 8 mph in the afternoon. Saturday Night: A chance of showers and thunderstorms before 5am, then a slight chance of showers. Partly cloudy, with a low around 75. Southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. Sunday: A chance of showers, with thunderstorms also possible after 8am. Partly sunny, with a high near 88. Chance of precipitation is 40%. Sunday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 74. Chance of precipitation is 30%. Monday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. Monday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 70%. Tuesday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 72. Chance of precipitation is 60%. Wednesday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 84. Wednesday Night: A chance of thunderstorms. Mostly cloudy, with a low around 70. Chance of precipitation is 30%. Thursday: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.

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

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