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CHARLESTON 7 Day Forecast

NWS Forecast for: Charleston SC Issued by: National Weather Service Charleston, SC Last Update: 7:02 pm EDT Jul 11, 2026

Tonight Low: 79 °F Chance T-storms then Slight Chance T-storms Sunday High: 97 °F Mostly Sunny then Chance T-storms Sunday Night Low: 76 °F Heavy Rain then Chance T-storms Monday High: 91 °F Slight Chance T-storms then T-storms Monday Night Low: 75 °F T-storms then Showers Likely Tuesday High: 90 °F Slight Chance T-storms then T-storms Likely Tuesday Night Low: 76 °F T-storms Likely then Slight Chance T-storms Wednesday High: 92 °F Mostly Sunny then Slight Chance T-storms Wednesday Night Low: 77 °F Partly Cloudy

Heat Advisory Tonight: A 50 percent chance of showers and thunderstorms, mainly before midnight. Mostly cloudy, with a low around 79. Southwest wind 6 to 10 mph. New rainfall amounts between a quarter and half of an inch possible. Sunday: A 50 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 97. Heat index values as high as 111. West wind 6 to 8 mph becoming south in the afternoon. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Sunday Night: Showers and thunderstorms likely, mainly before 4am. Some of the storms could produce heavy rainfall. Mostly cloudy, with a low around 76. Southwest wind 3 to 8 mph. Chance of precipitation is 70%. New rainfall amounts between a half and three quarters of an inch possible. Monday: A slight chance of showers and thunderstorms between 8am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 91. Heat index values as high as 103. Calm wind becoming south 5 to 8 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Monday Night: Showers and possibly a thunderstorm, mainly before 2am, then a slight chance of showers and thunderstorms after 2am. Low around 75. Southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible. Tuesday: Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Tuesday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 76. Chance of precipitation is 60%. Wednesday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Wednesday Night: Partly cloudy, with a low around 77. Thursday: Sunny, with a high near 95. Thursday Night: Mostly clear, with a low around 79. Friday: A 20 percent chance of showers and thunderstorms. Sunny, with a high near 95. Friday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 79. Saturday: A 20 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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