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CHARLESTON 7 Day Forecast

NWS Forecast for: Charleston SC Issued by: National Weather Service Charleston, SC Last Update: 2:45 pm EDT Jul 9, 2026

This Afternoon High: 98 °F Slight Chance T-storms Tonight Low: 81 °F Mostly Clear Friday High: 97 °F Sunny then Slight Chance T-storms Friday Night Low: 81 °F Chance T-storms then Mostly Clear Saturday High: 98 °F Sunny then Chance T-storms Saturday Night Low: 77 °F Chance T-storms then Chance Showers Sunday High: 93 °F Partly Sunny then T-storms Sunday Night Low: 74 °F T-storms then Showers Monday High: 87 °F Showers Likely then T-storms

Extreme Heat Warning Extreme Heat Warning This Afternoon: A 20 percent chance of showers and thunderstorms before 5pm. Mostly sunny, with a high near 98. Heat index values as high as 111. Southwest wind around 15 mph, with gusts as high as 22 mph. Tonight: Mostly clear, with a low around 81. Southwest wind 7 to 13 mph, with gusts as high as 21 mph. Friday: A 20 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 97. Heat index values as high as 109. West wind 8 to 14 mph, with gusts as high as 22 mph. Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Mostly clear, with a low around 81. Southwest wind 8 to 14 mph, with gusts as high as 21 mph. Saturday: A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 98. Southwest wind 8 to 14 mph, with gusts as high as 21 mph. Saturday Night: A 40 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 77. Sunday: Showers and possibly a thunderstorm after 2pm. High near 93. Chance of precipitation is 80%. Sunday Night: Showers and possibly a thunderstorm. Low around 74. Chance of precipitation is 80%. Monday: Showers and possibly a thunderstorm. High near 87. Chance of precipitation is 80%. Monday Night: Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Low around 73. Chance of precipitation is 80%. Tuesday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86. Tuesday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Wednesday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90. Wednesday Night: A chance of thunderstorms. Partly cloudy, with a low around 75. Chance of precipitation is 30%. Thursday: A 20 percent chance of showers and thunderstorms. Sunny, with a high near 93.

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

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