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CHARLESTON 7 Day Forecast

NWS Forecast for: Charleston SC Issued by: National Weather Service Charleston, SC Last Update: 2:20 am EDT Jul 20, 2026

Overnight Low: 80 °F Mostly Clear Monday High: 93 °F Mostly Sunny Monday Night Low: 81 °F Partly Cloudy Tuesday High: 93 °F Sunny Tuesday Night Low: 81 °F Partly Cloudy Wednesday High: 93 °F Mostly Sunny Wednesday Night Low: 80 °F Chance T-storms Thursday High: 93 °F Chance T-storms Thursday Night Low: 78 °F Chance T-storms

Overnight: Mostly clear, with a low around 80. Southwest wind around 7 mph. Monday: Mostly sunny, with a high near 93. Heat index values as high as 106. Southwest wind 6 to 13 mph, with gusts as high as 20 mph. Monday Night: Partly cloudy, with a low around 81. South wind 8 to 10 mph. Tuesday: Sunny, with a high near 93. Heat index values as high as 106. South wind 9 to 18 mph, with gusts as high as 26 mph. Tuesday Night: Partly cloudy, with a low around 81. South wind 13 to 15 mph, with gusts as high as 24 mph. Wednesday: Mostly sunny, with a high near 93. Wednesday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 80. Thursday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 93. Thursday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 78. Friday: Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 91. Chance of precipitation is 60%. Friday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 77. Chance of precipitation is 60%. Saturday: Showers and thunderstorms likely. Partly sunny, with a high near 90. Chance of precipitation is 70%. Saturday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 76. Chance of precipitation is 60%. Sunday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 89.

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

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