| NWS Forecast for: Charleston SC Issued by: National Weather Service Charleston, SC Last Update: 2:30 am EDT Jun 13, 2026 |  |
Today: A 40 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 97. Heat index values as high as 109. Light and variable wind becoming south 5 to 9 mph in the afternoon. Tonight: Partly cloudy, with a low around 80. South wind 6 to 8 mph. Sunday: A 30 percent chance of showers and thunderstorms after 2pm. Some of the storms could produce heavy rainfall. Mostly sunny, with a high near 96. Heat index values as high as 109. South wind 6 to 13 mph, with gusts as high as 20 mph. Sunday Night: A 20 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 80. Southwest wind 8 to 14 mph, with gusts as high as 22 mph. Monday: Showers and thunderstorms likely after 2pm. Mostly sunny, with a high near 95. West wind 8 to 13 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Monday Night: Showers likely and possibly a thunderstorm before 2am, then a slight chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 76. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 87. Chance of precipitation is 60%. Tuesday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 73. Chance of precipitation is 60%. Wednesday: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 87. Wednesday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 77. Chance of precipitation is 30%. Thursday: Mostly sunny, with a high near 92. Thursday Night: Partly cloudy, with a low around 80. Juneteenth: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93. | |
| Charleston SC 32.79°N 80.01°W (Elev. 10 ft) | |
Visit your local NWS office at: https://www.weather.gov/chs |
