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CHARLESTON 7 Day Forecast

NWS Forecast for: Charleston SC Issued by: National Weather Service Charleston, SC Last Update: 2:30 am EDT May 18, 2026

Overnight Low: 66 °F Mostly Clear Monday High: 85 °F Patchy Fog then Sunny Monday Night Low: 66 °F Mostly Clear Tuesday High: 86 °F Sunny Tuesday Night Low: 69 °F Mostly Clear Wednesday High: 88 °F Sunny Wednesday Night Low: 72 °F Mostly Clear Thursday High: 88 °F Sunny Thursday Night Low: 71 °F Mostly Clear then Chance Showers

Overnight: Mostly clear, with a low around 66. Calm wind. Monday: Patchy fog before 9am. Otherwise, sunny, with a high near 85. Light and variable wind becoming southeast 10 to 15 mph in the afternoon. Monday Night: Mostly clear, with a low around 66. Southeast wind 5 to 7 mph becoming calm in the evening. Tuesday: Sunny, with a high near 86. Light and variable wind becoming southeast 5 to 10 mph in the afternoon. Tuesday Night: Mostly clear, with a low around 69. Southeast wind around 6 mph becoming calm in the evening. Wednesday: Sunny, with a high near 88. Wednesday Night: Mostly clear, with a low around 72. Thursday: Sunny, with a high near 88. Thursday Night: A 30 percent chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 71. Friday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Friday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73. Saturday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87. Saturday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Sunday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.

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

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