Charleston, SC Weather & Growing Conditions
Today
90°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms between 2pm and 3pm, then showers and thunderstorms likely between 3pm and 5pm, then a chance of showers and thunderstorms. Mostly sunny. High near 90, with temperatures falling to around 84 in the afternoon. Northeast wind around 2 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 2 mph NE | 60% |
| Tonight | 72°F | Chance Showers And Thunderstorms | 1 mph E | 45% |
| Sunday | 87°F | Partly Sunny then Chance Showers And Thunderstorms | 2 mph NE | 45% |
| Sunday Night | 71°F | Chance Showers And Thunderstorms then Partly Cloudy | 1 mph NE | 32% |
| Monday | 89°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 3 mph E | 26% |
| Monday Night | 72°F | Chance Showers And Thunderstorms | 0 to 3 mph NE | 38% |
| Tuesday | 86°F | Showers And Thunderstorms Likely | 0 to 3 mph NE | 67% |
| Tuesday Night | 69°F | Showers And Thunderstorms Likely | 1 to 5 mph NE | 67% |
| Wednesday | 83°F | Chance Showers And Thunderstorms | 5 to 8 mph NE | 47% |
| Wednesday Night | 67°F | Chance Showers And Thunderstorms | 5 to 8 mph N | 47% |
| Thursday | 82°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 9 mph N | 21% |
| Thursday Night | 65°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 to 8 mph NE | 21% |
| Friday | 81°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 7 mph NE | 24% |
| Friday Night | 63°F | Slight Chance Showers And Thunderstorms | 5 mph NE | 24% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Charleston, SC
Last spring frost
Mar 22
First fall frost
Nov 13
Growing season
238 days
Hardiness zone
8b
Explore more for Charleston, SC: full frost dates · planting calendar · South Carolina frost dates
Climate data from the nearest NOAA station, Jamestown, Sc (14.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.