Charleston, SC Weather & Growing Conditions
Overnight
77°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 4am, then showers and thunderstorms likely. Mostly cloudy, with a low around 77. Southwest wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 77°F | Chance Showers And Thunderstorms | 5 mph SW | 71% |
| Tuesday | 85°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 2 to 13 mph SW | 69% |
| Tuesday Night | 79°F | Partly Cloudy then Chance Showers And Thunderstorms | 5 to 12 mph S | 49% |
| Wednesday | 86°F | Showers And Thunderstorms Likely then Partly Sunny | 5 to 13 mph S | 72% |
| Wednesday Night | 78°F | Chance Showers And Thunderstorms | 5 to 12 mph S | 49% |
| Thursday | 87°F | Chance Showers And Thunderstorms | 3 to 10 mph S | 51% |
| Thursday Night | 78°F | Slight Chance Showers And Thunderstorms | 3 to 9 mph S | 21% |
| Friday | 88°F | Chance Showers And Thunderstorms | 3 to 13 mph SE | 44% |
| Friday Night | 78°F | Chance Showers And Thunderstorms | 3 to 10 mph SE | 30% |
| Saturday | 87°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 3 to 10 mph SE | 61% |
| Saturday Night | 78°F | Chance Showers And Thunderstorms | 3 to 9 mph S | 31% |
| Sunday | 88°F | Chance Showers And Thunderstorms | 2 to 9 mph SW | 47% |
| Sunday Night | 79°F | Chance Showers And Thunderstorms | 3 to 9 mph SW | 32% |
| Monday | 90°F | Chance Showers And Thunderstorms | 3 to 10 mph SW | 34% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Charleston, SC
Last spring frost
Feb 4
First fall frost
Dec 30
Growing season
321 days
Hardiness zone
9a
Explore more for Charleston, SC: full frost dates · planting calendar · South Carolina frost dates
Climate data from the nearest NOAA station, Charleston City, Sc (0.2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.