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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 Jul 21, 2026		Print

Today

Today: Mostly sunny, with a high near 92. Heat index values as high as 105. South wind 8 to 18 mph, with gusts as high as 26 mph.

High: 92 °F

Mostly Sunny



Tonight

Tonight: Partly cloudy, with a low around 82. South wind 13 to 16 mph, with gusts as high as 25 mph.

Low: 82 °F

Partly Cloudy



Wednesday

Wednesday: Partly sunny, with a high near 93. Heat index values as high as 105. South wind 11 to 18 mph, with gusts as high as 26 mph.

High: 93 °F

Partly Sunny



Wednesday
Night

Wednesday Night: A 20 percent chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 81. South wind 11 to 15 mph, with gusts as high as 23 mph.

Low: 81 °F

Mostly Cloudy
then Slight
Chance
T-storms

Thursday

Thursday: A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. South wind 7 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

High: 93 °F

Mostly Sunny
then Chance
T-storms

Thursday
Night

Thursday Night: A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 78. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Low: 78 °F

Showers
Likely


Friday

Friday: Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 91. Chance of precipitation is 60%.

High: 91 °F

T-storms
Likely


Friday
Night

Friday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 78. Chance of precipitation is 60%.

Low: 78 °F

T-storms
Likely


Saturday

Saturday: Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 60%.

High: 90 °F

T-storms
Likely



Today: Mostly sunny, with a high near 92. Heat index values as high as 105. South wind 8 to 18 mph, with gusts as high as 26 mph.

Tonight: Partly cloudy, with a low around 82. South wind 13 to 16 mph, with gusts as high as 25 mph.

Wednesday: Partly sunny, with a high near 93. Heat index values as high as 105. South wind 11 to 18 mph, with gusts as high as 26 mph.

Wednesday Night: A 20 percent chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 81. South wind 11 to 15 mph, with gusts as high as 23 mph.

Thursday: A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. South wind 7 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

Thursday Night: A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 78. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Friday: Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 91. Chance of precipitation is 60%.

Friday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 78. Chance of precipitation is 60%.

Saturday: Showers and thunderstorms likely, mainly after 2pm. Partly sunny, with a high near 90. Chance of precipitation is 60%.

Saturday Night: Showers and thunderstorms likely before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 77. Chance of precipitation is 60%.

Sunday: Showers and thunderstorms likely. Partly sunny, with a high near 90. Chance of precipitation is 60%.

Sunday Night: Showers and thunderstorms likely. Partly cloudy, with a low around 77. Chance of precipitation is 60%.

Monday: A 30 percent chance of showers and thunderstorms. Sunny, with a high near 94.


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

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