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CHARLESTON 7 Day Forecast

NWS Forecast for: Charleston SC
Issued by: National Weather Service Charleston, SC
Last Update: 8:32 pm EDT Sep 1, 2026		Print

Tonight

Tonight: Partly cloudy, with a low around 76. Southeast wind around 5 mph becoming calm in the evening.

Low: 76 °F

Partly Cloudy


Wednesday

Wednesday: Areas of fog before 10am. Otherwise, partly sunny, with a high near 90. Heat index values as high as 102. Calm wind becoming southeast 5 to 8 mph in the afternoon.

High: 90 °F

Areas Fog
then Mostly
Sunny

Wednesday
Night

Wednesday Night: Mostly cloudy, with a low around 77. Southeast wind around 5 mph becoming calm in the evening.

Low: 77 °F

Mostly Cloudy


Thursday

Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 90. Heat index values as high as 103. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.

High: 90 °F

Decreasing
Clouds

Thursday
Night

Thursday Night: Mostly clear, with a low around 76. Southeast wind around 5 mph becoming calm in the evening.

Low: 76 °F

Mostly Clear


Friday

Friday: Sunny, with a high near 91.

High: 91 °F

Sunny


Friday
Night

Friday Night: Mostly clear, with a low around 76.

Low: 76 °F

Mostly Clear


Saturday

Saturday: Sunny, with a high near 95.

High: 95 °F

Sunny


Saturday
Night

Saturday Night: A 40 percent chance of showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 75.

Low: 75 °F

Chance
T-storms


Tonight: Partly cloudy, with a low around 76. Southeast wind around 5 mph becoming calm in the evening.

Wednesday: Areas of fog before 10am. Otherwise, partly sunny, with a high near 90. Heat index values as high as 102. Calm wind becoming southeast 5 to 8 mph in the afternoon.

Wednesday Night: Mostly cloudy, with a low around 77. Southeast wind around 5 mph becoming calm in the evening.

Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 90. Heat index values as high as 103. Light and variable wind becoming southeast 5 to 10 mph in the afternoon.

Thursday Night: Mostly clear, with a low around 76. Southeast wind around 5 mph becoming calm in the evening.

Friday: Sunny, with a high near 91.

Friday Night: Mostly clear, with a low around 76.

Saturday: Sunny, with a high near 95.

Saturday Night: A 40 percent chance of showers and thunderstorms, mainly before 2am. Partly cloudy, with a low around 75.

Sunday: A slight 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%.

Sunday Night: Showers and thunderstorms likely. Partly cloudy, with a low around 75. Chance of precipitation is 60%.

Labor Day: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.

Monday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.

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


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

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