National Weather Service Forecast for: Summerville SC
Issued by: National Weather Service Charleston, SC
Updated: 12:22 am EST Feb 2, 2026
 
Overnight

Overnight: Mostly clear, with a low around 19. Calm wind.
Mostly Clear

 Monday

Monday: Sunny, with a high near 43. Light and variable wind.
Sunny

 Monday
Night
Monday Night: Clear, with a low around 23. Calm wind.
Clear

 Tuesday

Tuesday: Partly sunny, with a high near 55. Calm wind becoming southwest around 6 mph in the afternoon.
Partly Sunny

 Tuesday
Night
Tuesday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 41. South wind around 6 mph.
Mostly Cloudy
then Slight
Chance
Showers
 Wednesday

Wednesday: Showers likely. Cloudy, with a high near 56. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Showers
Likely

 Wednesday
Night
Wednesday Night: A 50 percent chance of showers. Mostly cloudy, with a low around 38.
Chance
Showers

 Thursday

Thursday: Mostly cloudy, with a high near 47.
Mostly Cloudy

 Thursday
Night
Thursday Night: Mostly clear, with a low around 29.
Mostly Clear
Lo 19 °F Hi 43 °F Lo 23 °F Hi 55 °F Lo 41 °F Hi 56 °F Lo 38 °F Hi 47 °F Lo 29 °F

Cold Weather Advisory
 

Overnight
 
 Mostly clear, with a low around 19. Calm wind.
Monday
 
 Sunny, with a high near 43. Light and variable wind.
Monday Night
 
 Clear, with a low around 23. Calm wind.
Tuesday
 
 Partly sunny, with a high near 55. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
 
 A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 41. South wind around 6 mph.
Wednesday
 
 Showers likely. Cloudy, with a high near 56. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
 
 A 50 percent chance of showers. Mostly cloudy, with a low around 38.
Thursday
 
 Mostly cloudy, with a high near 47.
Thursday Night
 
 Mostly clear, with a low around 29.
Friday
 
 Sunny, with a high near 57.
Friday Night
 
 Clear, with a low around 36.
Saturday
 
 Sunny, with a high near 54.
Saturday Night
 
 Mostly clear, with a low around 29.
Sunday
 
 Sunny, with a high near 55.

 

Forecast from NOAA-NWS for Summerville SC.