Charleston, SC Weather & Growing Conditions
Today
90°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 90. Northeast wind around 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 | Mostly Sunny then Chance Showers And Thunderstorms | 5 mph NE | 45% |
| Tonight | 73°F | Chance Showers And Thunderstorms | 1 to 5 mph E | 33% |
| Sunday | 87°F | Partly Sunny then Chance Showers And Thunderstorms | 5 mph NE | 43% |
| Sunday Night | 73°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph E | 17% |
| Monday | 88°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 7 mph NE | 22% |
| Monday Night | 74°F | Chance Showers And Thunderstorms | 1 to 6 mph E | 39% |
| Tuesday | 86°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 2 to 8 mph NE | 68% |
| Tuesday Night | 72°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 7 mph NE | 68% |
| Wednesday | 84°F | Chance Showers And Thunderstorms | 8 to 13 mph NE | 49% |
| Wednesday Night | 69°F | Chance Showers And Thunderstorms | 12 mph NE | 49% |
| Thursday | 83°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 13 mph N | 22% |
| Thursday Night | 68°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 8 to 12 mph NE | 22% |
| Friday | 82°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 10 mph NE | 24% |
| Friday Night | 67°F | Slight Chance Showers And Thunderstorms | 5 to 9 mph NE | 24% |
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 (1.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.