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CHARLESTON 7 Day Forecast

NWS Forecast for: Charleston SC Issued by: National Weather Service Charleston, SC Last Update: 8:32 am EDT May 23, 2026

Today High: 85 °F Slight Chance Showers then Chance T-storms Tonight Low: 73 °F Chance T-storms Sunday High: 86 °F Showers Likely Sunday Night Low: 74 °F Chance Showers Memorial Day High: 87 °F Chance Showers Monday Night Low: 75 °F Partly Cloudy Tuesday High: 88 °F Chance Showers then Chance T-storms Tuesday Night Low: 75 °F Chance T-storms Wednesday High: 89 °F Chance Showers then Chance T-storms

Hazardous Weather Outlook Today: A slight chance of showers before 1pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 85. Light southeast wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 30%. Tonight: A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms after 9pm. Mostly cloudy, with a low around 73. South wind 3 to 7 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Sunday: Showers and thunderstorms likely, mainly before 1pm. Mostly cloudy, with a high near 86. Light south wind increasing to 6 to 11 mph in the morning. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 74. South wind 5 to 8 mph. Chance of precipitation is 30%. Memorial Day: A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 87. South wind 5 to 11 mph. Chance of precipitation is 40%. Monday Night: Partly cloudy, with a low around 75. Tuesday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Tuesday Night: A chance of showers and thunderstorms before 2am, then a slight chance of showers. Mostly cloudy, with a low around 75. Chance of precipitation is 30%. Wednesday: A chance of showers, with thunderstorms also possible after 8am. Mostly cloudy, with a high near 89. Chance of precipitation is 50%. 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: Showers and thunderstorms likely. Mostly cloudy, with a high near 89. Chance of precipitation is 60%. Thursday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 71. Chance of precipitation is 60%. 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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