Site menu:




CHARLESTON 7 Day Forecast

NWS Forecast for: Charleston SC
Issued by: National Weather Service Charleston, SC
Last Update: 8:32 am EDT Aug 24, 2026		Print

This
Afternoon

This Afternoon: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Heat index values as high as 105. Southwest wind around 9 mph.

High: 93 °F

Chance
T-storms


Tonight

Tonight: A 30 percent chance of showers and thunderstorms, mainly before 9pm. Partly cloudy, with a low around 76. Southwest wind around 6 mph becoming calm in the evening.

Low: 76 °F

Chance
T-storms


Tuesday

Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Mostly sunny, with a high near 89. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

High: 89 °F

Sunny then
Showers
Likely

Tuesday
Night

Tuesday Night: A 50 percent chance of showers and thunderstorms, mainly after 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 75. Southeast wind around 5 mph becoming calm in the evening. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Low: 75 °F

Chance
T-storms


Wednesday

Wednesday: Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Calm wind becoming southeast 5 to 9 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

High: 88 °F

Showers
Likely


Wednesday
Night

Wednesday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Low: 76 °F

Chance
T-storms


Thursday

Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 60%.

High: 89 °F

Chance
T-storms then
Showers
Likely

Thursday
Night

Thursday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Partly cloudy, with a low around 76. Chance of precipitation is 60%.

Low: 76 °F

Showers
Likely then
Chance
T-storms

Friday

Friday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 60%.

High: 90 °F

Chance
T-storms then
Showers
Likely


This Afternoon: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 93. Heat index values as high as 105. Southwest wind around 9 mph.

Tonight: A 30 percent chance of showers and thunderstorms, mainly before 9pm. Partly cloudy, with a low around 76. Southwest wind around 6 mph becoming calm in the evening.

Tuesday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5pm. Mostly sunny, with a high near 89. Calm wind becoming southeast 5 to 7 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Tuesday Night: A 50 percent chance of showers and thunderstorms, mainly after 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 75. Southeast wind around 5 mph becoming calm in the evening. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday: Showers likely and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Calm wind becoming southeast 5 to 9 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Wednesday Night: A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 89. Chance of precipitation is 60%.

Thursday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Partly cloudy, with a low around 76. Chance of precipitation is 60%.

Friday: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 60%.

Friday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Partly cloudy, with a low around 76. Chance of precipitation is 60%.

Saturday: A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.

Saturday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.

Sunday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.


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

Visit your local NWS office at: https://www.weather.gov/chs