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CHARLESTON 7 Day Forecast

NWS Forecast for: Charleston SC
Issued by: National Weather Service Charleston, SC
Last Update: 2:30 pm EDT May 22, 2026
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Tonight

Tonight: Mostly cloudy, with a low around 74. Southeast wind 5 to 10 mph.

Low: 74 °F

Mostly Cloudy



Saturday

Saturday: A 20 percent chance of showers and thunderstorms after 2pm.  Mostly cloudy, then gradually becoming sunny, with a high near 87. Light southeast wind increasing to 5 to 10 mph in the morning.

High: 87 °F

Partly Sunny
then Slight
Chance
T-storms

Saturday
Night

Saturday Night: A slight chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 5am, then a slight chance of showers and thunderstorms after 5am.  Mostly cloudy, with a low around 73. South wind 3 to 7 mph.  Chance of precipitation is 20%.

Low: 73 °F

Mostly Cloudy
then Slight
Chance
T-storms

Sunday

Sunday: Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm.  Partly sunny, with a high near 86. 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.

High: 86 °F

Showers
Likely


Sunday
Night

Sunday Night: A chance of showers and thunderstorms before 2am, then a chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am.  Mostly cloudy, with a low around 74. South wind 6 to 8 mph.  Chance of precipitation is 30%.

Low: 74 °F

Chance
Showers


Memorial
Day

Memorial Day: A 40 percent chance of showers and thunderstorms, mainly between 11am and 2pm.  Partly sunny, with a high near 87.

High: 87 °F

Chance
T-storms


Monday
Night

Monday Night: A slight chance of showers and thunderstorms.  Mostly cloudy, with a low around 73. Chance of precipitation is 20%.

Low: 73 °F

Slight Chance
T-storms


Tuesday

Tuesday: A chance of showers, with thunderstorms also possible after 2pm.  Partly sunny, with a high near 87. Chance of precipitation is 30%.

High: 87 °F

Chance
Showers


Tuesday
Night

Tuesday Night: A slight chance of thunderstorms before 8pm, then a slight chance of showers after 2am.  Mostly cloudy, with a low around 74. Chance of precipitation is 20%.

Low: 74 °F

Mostly Cloudy
then Slight
Chance
Showers




Tonight: Mostly cloudy, with a low around 74. Southeast wind 5 to 10 mph.

Saturday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly cloudy, then gradually becoming sunny, with a high near 87. Light southeast wind increasing to 5 to 10 mph in the morning.

Saturday Night: A slight chance of showers and thunderstorms before 3am, then a slight chance of showers between 3am and 5am, then a slight chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 73. South wind 3 to 7 mph. Chance of precipitation is 20%.

Sunday: Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 86. 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 2am, then a chance of showers between 2am and 5am, then a chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 74. South wind 6 to 8 mph. Chance of precipitation is 30%.

Memorial Day: A 40 percent chance of showers and thunderstorms, mainly between 11am and 2pm. Partly sunny, with a high near 87.

Monday Night: A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 20%.

Tuesday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 87. Chance of precipitation is 30%.

Tuesday Night: A slight chance of thunderstorms before 8pm, then a slight chance of showers after 2am. Mostly 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 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.

Thursday: Showers and thunderstorms likely. Mostly cloudy, with a high near 87. Chance of precipitation is 60%.

Thursday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.

Friday: Showers and thunderstorms likely. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.



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

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