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CHARLESTON 7 Day Forecast

NWS Forecast for: Charleston SC Issued by: National Weather Service Charleston, SC Last Update: 2:17 pm EDT May 23, 2026

This Afternoon High: 88 °F Partly Sunny Tonight Low: 73 °F Chance T-storms then Showers Likely Sunday High: 85 °F Chance T-storms then Showers Likely Sunday Night Low: 73 °F Chance T-storms then Chance Showers Memorial Day High: 87 °F Chance Showers Monday Night Low: 74 °F Partly Cloudy then Slight Chance Showers Tuesday High: 87 °F Chance Showers Tuesday Night Low: 74 °F Partly Cloudy then Slight Chance Showers Wednesday High: 88 °F Chance Showers then Chance T-storms

Hazardous Weather Outlook This Afternoon: Partly sunny, with a high near 88. Southeast wind around 10 mph. Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 3am. Mostly cloudy, with a low around 73. Southeast wind 3 to 7 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Sunday: A chance of showers and thunderstorms before noon, then showers likely and possibly a thunderstorm between noon and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 85. Light south wind increasing to 6 to 11 mph in the morning. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Sunday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 73. South wind 5 to 8 mph. Chance of precipitation is 40%. Memorial Day: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm. Partly sunny, with a high near 87. South wind 5 to 11 mph. Chance of precipitation is 30%. Monday Night: A 20 percent chance of showers after 2am. Partly cloudy, with a low around 74. Tuesday: A chance of showers, with thunderstorms also possible after 11am. Mostly sunny, with a high near 87. Chance of precipitation is 30%. Tuesday Night: A slight chance of showers before 8pm, then a slight chance of showers after 2am. Partly cloudy, with a low around 74. Chance of precipitation is 20%. Wednesday: A 50 percent chance of showers and thunderstorms, mainly after 8am. Partly sunny, with a high near 88. Wednesday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 73. Chance of precipitation is 30%. Thursday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 89. Thursday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Friday: Showers and thunderstorms likely. Mostly cloudy, with a high near 87. Chance of precipitation is 70%.

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

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