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CHARLESTON 7 Day Forecast

NWS Forecast for: Charleston SC Issued by: National Weather Service Charleston, SC Last Update: 3:02 am EDT May 20, 2026

Today High: 87 °F Patchy Fog then Sunny Tonight Low: 69 °F Mostly Clear Thursday High: 89 °F Mostly Sunny Thursday Night Low: 73 °F Mostly Clear Friday High: 87 °F Slight Chance Showers Friday Night Low: 75 °F Partly Cloudy then Slight Chance Showers Saturday High: 88 °F Chance Showers Saturday Night Low: 75 °F Mostly Cloudy Sunday High: 88 °F Chance Showers then Chance T-storms

Today: Patchy fog before 9am. Otherwise, sunny, with a high near 87. Light and variable wind becoming southeast 10 to 15 mph in the afternoon. Tonight: Mostly clear, with a low around 69. South wind 5 to 8 mph becoming calm in the evening. Thursday: Mostly sunny, with a high near 89. Light and variable wind becoming south 5 to 10 mph in the afternoon. Thursday Night: Mostly clear, with a low around 73. South wind 5 to 7 mph becoming calm in the evening. Friday: A 20 percent chance of showers before 2pm. Mostly sunny, with a high near 87. Light southeast wind becoming south 6 to 11 mph in the morning. Friday Night: A 20 percent chance of showers after 2am. Partly cloudy, with a low around 75. Saturday: A 40 percent chance of showers and thunderstorms, mainly between 8am and 2pm. Partly sunny, with a high near 88. Saturday Night: Mostly cloudy, with a low around 75. Sunday: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Sunday Night: A chance of thunderstorms before 8pm. Mostly cloudy, with a low around 74. Chance of precipitation is 30%. Memorial Day: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. Monday Night: Partly cloudy, with a low around 74. Tuesday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.

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

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