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

Today: A 30 percent chance of showers and thunderstorms, mainly after 2pm. Sunny, with a high near 95. Heat index values as high as 107. Light and variable wind.
Mostly Sunny
then Chance
T-storms
 Tonight

Tonight: Mostly clear, with a low around 75. Light south wind.
Mostly Clear

 Friday

Friday: Showers and thunderstorms likely, mainly after 5pm. Increasing clouds, with a high near 95. Heat index values as high as 106. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunny then
T-storms
Likely
 Friday
Night
Friday Night: Showers and thunderstorms likely, mainly before 7pm. Mostly cloudy, with a low around 73. Light south wind. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
T-storms
Likely

 Saturday

Saturday: Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 91. Light southwest wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter 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. Partly cloudy, with a low around 72. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
T-storms
Likely then
Chance
T-storms
 Sunday

Sunday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93.
Sunny then
Slight Chance
T-storms
 Sunday
Night
Sunday Night: Mostly clear, with a low around 72.
Mostly Clear

 Monday

Monday: A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 92.
Sunny then
Slight Chance
T-storms
Hi 95 °F Lo 75 °F Hi 95 °F Lo 73 °F Hi 91 °F Lo 72 °F Hi 93 °F Lo 72 °F Hi 92 °F

Heat Advisory
 

Today
 
 A 30 percent chance of showers and thunderstorms, mainly after 2pm. Sunny, with a high near 95. Heat index values as high as 107. Light and variable wind.
Tonight
 
 Mostly clear, with a low around 75. Light south wind.
Friday
 
 Showers and thunderstorms likely, mainly after 5pm. Increasing clouds, with a high near 95. Heat index values as high as 106. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
 
 Showers and thunderstorms likely, mainly before 7pm. Mostly cloudy, with a low around 73. Light south wind. Chance of precipitation is 60%. 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 91. Light southwest wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
 
 Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 72. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
 
 A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 93.
Sunday Night
 
 Mostly clear, with a low around 72.
Monday
 
 A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 92.
Monday Night
 
 Mostly clear, with a low around 72.
Tuesday
 
 A 40 percent chance of showers and thunderstorms. Sunny, with a high near 91.
Tuesday Night
 
 A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Wednesday
 
 A 50 percent chance of showers and thunderstorms. Sunny, with a high near 91.

 

Forecast from NOAA-NWS for Moncks Corner SC.