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CHARLESTON 7 Day Forecast

NWS Forecast for: Charleston SC
Issued by: National Weather Service Charleston, SC
Last Update: 2:35 pm EDT May 21, 2026
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Tonight

Tonight: Increasing clouds, with a low around 73. South wind 5 to 10 mph becoming light  after midnight.

Low: 73 °F

Increasing
Clouds


Friday

Friday: A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and noon.  Mostly sunny, with a high near 87. Light south wind increasing to 6 to 11 mph in the morning.  Chance of precipitation is 20%.

High: 87 °F

Slight Chance
T-storms then
Mostly Sunny

Friday
Night

Friday Night: Mostly cloudy, with a low around 75. South wind 3 to 7 mph.

Low: 75 °F

Mostly Cloudy



Saturday

Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 88. South wind 5 to 10 mph.  Chance of precipitation is 30%.

High: 88 °F

Slight Chance
Showers then
Chance
T-storms

Saturday
Night

Saturday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers after 2am.  Mostly cloudy, with a low around 75. South wind 3 to 7 mph.  Chance of precipitation is 40%.

Low: 75 °F

Chance
T-storms then
Chance
Showers

Sunday

Sunday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 87. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

High: 87 °F

Showers
Likely


Sunday
Night

Sunday Night: A chance of showers before 8pm, then a slight chance of showers after 2am.  Partly cloudy, with a low around 74. Chance of precipitation is 30%.

Low: 74 °F

Chance
Showers


Memorial
Day

Memorial Day: A 30 percent chance of showers and thunderstorms, mainly between 8am and 2pm.  Partly sunny, with a high near 88.

High: 88 °F

Chance
Showers


Monday
Night

Monday Night: Partly cloudy, with a low around 74.

Low: 74 °F

Partly Cloudy






Tonight: Increasing clouds, with a low around 73. South wind 5 to 10 mph becoming light after midnight.

Friday: A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and noon. Mostly sunny, with a high near 87. Light south wind increasing to 6 to 11 mph in the morning. Chance of precipitation is 20%.

Friday Night: Mostly cloudy, with a low around 75. South wind 3 to 7 mph.

Saturday: A slight chance of showers, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 88. South wind 5 to 10 mph. Chance of precipitation is 30%.

Saturday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 75. South wind 3 to 7 mph. Chance of precipitation is 40%.

Sunday: A chance of showers and thunderstorms before 8am, then showers likely and possibly a thunderstorm between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 87. 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 before 8pm, then a slight chance of showers after 2am. Partly cloudy, with a low around 74. Chance of precipitation is 30%.

Memorial Day: A 30 percent chance of showers and thunderstorms, mainly between 8am and 2pm. Partly sunny, with a high near 88.

Monday Night: Partly cloudy, with a low around 74.

Tuesday: A 30 percent chance of showers and thunderstorms, mainly before 2pm. Partly sunny, with a high near 88.

Tuesday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.

Wednesday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.

Wednesday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 71.

Thursday: Showers and thunderstorms likely. Partly sunny, with a high near 86. Chance of precipitation is 60%.



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

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