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CHARLESTON 7 Day Forecast

NWS Forecast for: Charleston SC
Issued by: National Weather Service Charleston, SC
Last Update: 9:22 am EDT Aug 12, 2026
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Today

Today: A 20 percent chance of showers and thunderstorms after 3pm.  Sunny, with a high near 96. Heat index values as high as 110. West wind around 8 mph.

High: 96 °F

Sunny then
Slight Chance
T-storms

Tonight

Tonight: A 20 percent chance of showers and thunderstorms before 9pm.  Partly cloudy, with a low around 79. West wind 3 to 7 mph.

Low: 79 °F

Slight Chance
T-storms then
Mostly Clear

Thursday

Thursday: A slight chance of showers and thunderstorms between 2pm and 3pm.  Sunny, with a high near 97. Heat index values as high as 111. West wind 3 to 8 mph.  Chance of precipitation is 20%.

High: 97 °F

Sunny then
Slight Chance
T-storms

Thursday
Night

Thursday Night: Mostly clear, with a low around 81. Southwest wind 6 to 8 mph.

Low: 81 °F

Mostly Clear



Friday

Friday: Mostly sunny, with a high near 98. Southwest wind 5 to 9 mph.

High: 98 °F

Mostly Sunny



Friday
Night

Friday Night: Partly cloudy, with a low around 81.

Low: 81 °F

Partly Cloudy



Saturday

Saturday: A 40 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 97.

High: 97 °F

Mostly Sunny
then Chance
T-storms

Saturday
Night

Saturday Night: A 40 percent chance of showers and thunderstorms before 2am.  Partly cloudy, with a low around 80.

Low: 80 °F

Chance
T-storms


Sunday

Sunday: A 20 percent chance of showers and thunderstorms after 2pm.  Mostly sunny, with a high near 91.

High: 91 °F

Mostly Sunny
then Slight
Chance
T-storms




Today: A 20 percent chance of showers and thunderstorms after 3pm. Sunny, with a high near 96. Heat index values as high as 110. West wind around 8 mph.

Tonight: A 20 percent chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 79. West wind 3 to 7 mph.

Thursday: A slight chance of showers and thunderstorms between 2pm and 3pm. Sunny, with a high near 97. Heat index values as high as 111. West wind 3 to 8 mph. Chance of precipitation is 20%.

Thursday Night: Mostly clear, with a low around 81. Southwest wind 6 to 8 mph.

Friday: Mostly sunny, with a high near 98. Southwest wind 5 to 9 mph.

Friday Night: Partly cloudy, with a low around 81.

Saturday: A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 97.

Saturday Night: A 40 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 80.

Sunday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 91.

Sunday Night: Partly cloudy, with a low around 80.

Monday: Mostly sunny, with a high near 96.

Monday Night: Mostly clear, with a low around 80.

Tuesday: A 30 percent chance of showers and thunderstorms. Sunny, with a high near 96.



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

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