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CHARLESTON 7 Day Forecast

NWS Forecast for: Charleston SC
Issued by: National Weather Service Charleston, SC
Last Update: 2:57 am EDT Jul 23, 2026		Print

Today

Today: Mostly sunny, with a high near 94. Heat index values as high as 107. South wind 7 to 10 mph.

High: 94 °F

Mostly Sunny



Tonight

Tonight: Partly cloudy, with a low around 80. South wind 5 to 10 mph.

Low: 80 °F

Partly Cloudy



Friday

Friday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Heat index values as high as 106. Light southwest wind becoming south 5 to 9 mph in the morning.

High: 92 °F

Mostly Sunny
then Slight
Chance
T-storms

Friday
Night

Friday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 78. South wind 3 to 6 mph.

Low: 78 °F

Chance
T-storms


Saturday

Saturday: Showers and possibly a thunderstorm. High near 91. West wind 3 to 7 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

High: 91 °F

Showers
Likely then
T-storms

Saturday
Night

Saturday Night: Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Low around 76. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Low: 76 °F

T-storms then
Showers
Likely

Sunday

Sunday: Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 70%.

High: 92 °F

T-storms
Likely


Sunday
Night

Sunday Night: Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 76. Chance of precipitation is 60%.

Low: 76 °F

T-storms
Likely then
Slight Chance
T-storms

Monday

Monday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92.

High: 92 °F

Sunny then
Slight Chance
T-storms


Today: Mostly sunny, with a high near 94. Heat index values as high as 107. South wind 7 to 10 mph.

Tonight: Partly cloudy, with a low around 80. South wind 5 to 10 mph.

Friday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92. Heat index values as high as 106. Light southwest wind becoming south 5 to 9 mph in the morning.

Friday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 78. South wind 3 to 6 mph.

Saturday: Showers and possibly a thunderstorm. High near 91. West wind 3 to 7 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night: Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Low around 76. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Sunday: Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 70%.

Sunday Night: Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 76. Chance of precipitation is 60%.

Monday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 92.

Monday Night: Mostly clear, with a low around 78.

Tuesday: Sunny, with a high near 94.

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

Wednesday: A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.


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

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