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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 Jun 17, 2026		Print

Overnight

Overnight: Partly cloudy, with a low around 77. Southwest wind around 10 mph.

Low: 77 °F

Partly Cloudy


Thursday

Thursday: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 92. Heat index values as high as 105. Southwest wind 9 to 15 mph, with gusts as high as 23 mph.

High: 92 °F

Mostly Sunny
then Chance
T-storms

Thursday
Night

Thursday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4am. Low around 75. Southwest wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Low: 75 °F

Chance
T-storms then
Showers

Juneteenth

Juneteenth: A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 88. West wind 15 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

High: 88 °F

Showers
Likely

Friday
Night

Friday Night: A 30 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 75. Southwest wind 6 to 9 mph.

Low: 75 °F

Chance
T-storms

Saturday

Saturday: A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 91.

High: 91 °F

Partly Sunny
then Chance
T-storms

Saturday
Night

Saturday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 74.

Low: 74 °F

Chance
T-storms then
Partly Cloudy

Sunday

Sunday: Mostly sunny, with a high near 91.

High: 91 °F

Mostly Sunny


Sunday
Night

Sunday Night: Partly cloudy, with a low around 77.

Low: 77 °F

Partly Cloudy



Overnight: Partly cloudy, with a low around 77. Southwest wind around 10 mph.

Thursday: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 92. Heat index values as high as 105. Southwest wind 9 to 15 mph, with gusts as high as 23 mph.

Thursday Night: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4am. Low around 75. Southwest wind 10 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

Juneteenth: A chance of showers and thunderstorms before 7am, then showers likely and possibly a thunderstorm between 7am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 88. West wind 15 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday Night: A 30 percent chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 75. Southwest wind 6 to 9 mph.

Saturday: A 30 percent chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 91.

Saturday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 74.

Sunday: Mostly sunny, with a high near 91.

Sunday Night: Partly cloudy, with a low around 77.

Monday: A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.

Monday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 79.

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

Tuesday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 76.

Wednesday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.


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

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