National Weather Service Forecast for: 4 Miles E Charleston SC
Issued by: National Weather Service Charleston, SC
Updated: 3:06 am EDT Aug 20, 2026
 
Today

Today: A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 91. Heat index values as high as 109. Calm wind becoming southeast 5 to 9 mph in the afternoon.
Sunny then
Slight Chance
T-storms
 Tonight

Tonight: Mostly clear, with a low around 81. Southwest wind 6 to 8 mph.
Mostly Clear

 Friday

Friday: A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 91. Heat index values as high as 108. South wind 5 to 13 mph.
Mostly Sunny
then Chance
T-storms
 Friday
Night
Friday Night: A 50 percent chance of showers and thunderstorms. Cloudy, then gradually becoming partly cloudy, with a low around 78. Southwest wind 7 to 10 mph. New rainfall amounts between a quarter and half of an inch possible.
Chance
T-storms

 Saturday

Saturday: Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 90. Southwest wind 5 to 11 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Slight Chance
T-storms then
T-storms
Likely
 Saturday
Night
Saturday Night: Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 77. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
T-storms
Likely

 Sunday

Sunday: A slight chance of showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 20%.
Mostly Sunny
then Slight
Chance
T-storms
 Sunday
Night
Sunday Night: Mostly clear, with a low around 78.
Mostly Clear

 Monday

Monday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 90.
Sunny then
Slight Chance
T-storms
Hi 91 °F Lo 81 °F Hi 91 °F Lo 78 °F Hi 90 °F Lo 77 °F Hi 90 °F Lo 78 °F Hi 90 °F

Heat Advisory
 

Today
 
 A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 91. Heat index values as high as 109. Calm wind becoming southeast 5 to 9 mph in the afternoon.
Tonight
 
 Mostly clear, with a low around 81. Southwest wind 6 to 8 mph.
Friday
 
 A 30 percent chance of showers and thunderstorms, mainly after 3pm. Mostly sunny, with a high near 91. Heat index values as high as 108. South wind 5 to 13 mph.
Friday Night
 
 A 50 percent chance of showers and thunderstorms. Cloudy, then gradually becoming partly cloudy, with a low around 78. Southwest wind 7 to 10 mph. New rainfall amounts between a quarter and half of an inch possible.
Saturday
 
 Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 90. Southwest wind 5 to 11 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
 
 Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 77. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
 
 A slight chance of showers and thunderstorms before 8am, then a slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Chance of precipitation is 20%.
Sunday Night
 
 Mostly clear, with a low around 78.
Monday
 
 A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 90.
Monday Night
 
 A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 78.
Tuesday
 
 A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Tuesday Night
 
 A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 77.
Wednesday
 
 A 40 percent chance of showers and thunderstorms. Sunny, with a high near 89.

 

Forecast from NOAA-NWS for 4 Miles E Charleston SC.