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CHARLESTON 7 Day Forecast

NWS Forecast for: Charleston SC
Issued by: National Weather Service Charleston, SC
Last Update: 12:12 am EDT Jun 17, 2026		Print

Overnight

Overnight: Showers, mainly before 3am. Low around 74. Southwest wind 6 to 8 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Low: 74 °F

Showers



Wednesday

Wednesday: Showers and thunderstorms likely, mainly before 10am. Mostly cloudy, with a high near 87. Southwest wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

High: 87 °F

Showers
Likely then
Chance
T-storms

Wednesday
Night

Wednesday Night: Mostly cloudy, then gradually becoming clear, with a low around 77. Southwest wind around 10 mph.

Low: 77 °F

Decreasing
Clouds


Thursday

Thursday: A 40 percent chance of showers and thunderstorms after 2pm. Increasing clouds, with a high near 93. Heat index values as high as 103. Southwest wind 10 to 16 mph, with gusts as high as 23 mph.

High: 93 °F

Sunny then
Chance
T-storms

Thursday
Night

Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 77. Southwest wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Low: 77 °F

Chance
T-storms then
Chance
Showers

Juneteenth

Juneteenth: Showers likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 89. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

High: 89 °F

Showers
Likely then
T-storms
Likely

Friday
Night

Friday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 74. Chance of precipitation is 60%.

Low: 74 °F

T-storms
Likely


Saturday

Saturday: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 90.

High: 90 °F

Chance
T-storms


Saturday
Night

Saturday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73.

Low: 73 °F

Chance
T-storms then
Partly Cloudy


Overnight: Showers, mainly before 3am. Low around 74. Southwest wind 6 to 8 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Wednesday: Showers and thunderstorms likely, mainly before 10am. Mostly cloudy, with a high near 87. Southwest wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Wednesday Night: Mostly cloudy, then gradually becoming clear, with a low around 77. Southwest wind around 10 mph.

Thursday: A 40 percent chance of showers and thunderstorms after 2pm. Increasing clouds, with a high near 93. Heat index values as high as 103. Southwest wind 10 to 16 mph, with gusts as high as 23 mph.

Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 77. Southwest wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Juneteenth: Showers likely before 11am, then showers likely and possibly a thunderstorm between 11am and 2pm, then showers and thunderstorms likely after 2pm. Mostly cloudy, with a high near 89. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 74. Chance of precipitation is 60%.

Saturday: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 90.

Saturday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73.

Sunday: A 20 percent chance of showers before 2pm. Mostly sunny, with a high near 90.

Sunday Night: A 20 percent chance of showers. Partly cloudy, with a low around 76.

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

Monday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 78.

Tuesday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.


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

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