Summerville, SC Weather & Growing Conditions
Today
90°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny, with a high near 90. Heat index values as high as 102. South wind 0 to 5 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 52% |
| Tonight | 73°F | Chance Showers And Thunderstorms | 0 to 5 mph S | 43% |
| Wednesday | 90°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 0 to 8 mph S | 48% |
| Wednesday Night | 74°F | Slight Chance Showers And Thunderstorms | 0 to 7 mph S | 15% |
| Thursday | 90°F | Showers And Thunderstorms Likely | 0 to 6 mph S | 63% |
| Thursday Night | 74°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 0 to 6 mph E | 57% |
| Friday | 92°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 to 7 mph SE | 58% |
| Friday Night | 73°F | Chance Showers And Thunderstorms then Partly Cloudy | 0 to 6 mph E | 37% |
| Saturday | 91°F | Showers And Thunderstorms Likely | 0 to 5 mph SE | 61% |
| Saturday Night | 74°F | Chance Showers And Thunderstorms | 0 to 3 mph SE | 53% |
| Sunday | 92°F | Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 0 to 3 mph SW | 56% |
| Sunday Night | 74°F | Showers And Thunderstorms Likely then Partly Cloudy | 0 to 3 mph SW | 56% |
| Monday | 93°F | Chance Showers And Thunderstorms | 0 to 3 mph W | 46% |
| Monday Night | 75°F | Chance Showers And Thunderstorms then Partly Cloudy | 3 mph SW | 46% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Summerville, SC
Last spring frost
Mar 22
First fall frost
Nov 12
Growing season
238 days
Hardiness zone
8b
Explore more for Summerville, SC: full frost dates · planting calendar · South Carolina frost dates
Climate data from the nearest NOAA station, Summerville 4W, Sc (6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.