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CHARLESTON 7 Day Forecast

NWS Forecast for: Charleston SC
Issued by: National Weather Service Charleston, SC
Last Update: 8:30 pm EDT Sep 2, 2026		Print

Tonight

Tonight: Partly cloudy, with a low around 77. Light southeast wind.

Low: 77 °F

Partly Cloudy



Thursday

Thursday: Mostly sunny, with a high near 90. Heat index values as high as 102. Light and variable wind becoming southeast 5 to 10 mph in the morning.

High: 90 °F

Mostly Sunny



Thursday
Night

Thursday Night: Mostly clear, with a low around 78. Southeast wind around 5 mph becoming calm in the evening.

Low: 78 °F

Mostly Clear



Friday

Friday: A slight chance of showers, with thunderstorms also possible after 11am. Sunny, with a high near 90. Heat index values as high as 103. Calm wind becoming south 5 to 9 mph in the afternoon. Chance of precipitation is 20%.

High: 90 °F

Slight Chance
T-storms


Friday
Night

Friday Night: Mostly clear, with a low around 77. South wind 3 to 6 mph.

Low: 77 °F

Mostly Clear



Saturday

Saturday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93.

High: 93 °F

Sunny then
Slight Chance
T-storms

Saturday
Night

Saturday Night: A 40 percent chance of showers and thunderstorms, mainly after 8pm. Partly cloudy, with a low around 76.

Low: 76 °F

Chance
T-storms


Sunday

Sunday: A slight 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 70%.

High: 89 °F

Slight Chance
T-storms then
Showers
Likely

Sunday
Night

Sunday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 74. Chance of precipitation is 60%.

Low: 74 °F

Showers
Likely then
Chance
T-storms


Tonight: Partly cloudy, with a low around 77. Light southeast wind.

Thursday: Mostly sunny, with a high near 90. Heat index values as high as 102. Light and variable wind becoming southeast 5 to 10 mph in the morning.

Thursday Night: Mostly clear, with a low around 78. Southeast wind around 5 mph becoming calm in the evening.

Friday: A slight chance of showers, with thunderstorms also possible after 11am. Sunny, with a high near 90. Heat index values as high as 103. Calm wind becoming south 5 to 9 mph in the afternoon. Chance of precipitation is 20%.

Friday Night: Mostly clear, with a low around 77. South wind 3 to 6 mph.

Saturday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93.

Saturday Night: A 40 percent chance of showers and thunderstorms, mainly after 8pm. Partly cloudy, with a low around 76.

Sunday: A slight 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 70%.

Sunday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 74. Chance of precipitation is 60%.

Labor Day: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.

Monday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.

Tuesday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.

Tuesday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.

Wednesday: A 20 percent chance of showers and thunderstorms. Sunny, with a high near 88.


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

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