Harman US

Charleston, SC Weather & Growing Conditions

Today
81°F
Mostly Sunny
Mostly sunny, with a high near 81. Southeast wind 6 to 10 mph.

7-day forecast

WhenTempForecastWindPrecip
Today 81°F Mostly Sunny 6 to 10 mph SE 4%
Tonight 67°F Mostly Cloudy 1 to 5 mph SE 4%
Thursday 82°F Patchy Fog then Mostly Sunny 1 to 8 mph S 5%
Thursday Night 67°F Partly Cloudy 3 mph S 1%
Friday 80°F Chance Rain Showers 2 to 8 mph SW 46%
Friday Night 61°F Chance Rain Showers then Partly Cloudy 3 mph W 46%
Saturday 75°F Sunny 6 mph N 2%
Saturday Night 52°F Partly Cloudy 2 to 6 mph NE 2%
Sunday 71°F Mostly Sunny 6 mph NE 2%
Sunday Night 49°F Partly Cloudy 2 mph N 3%
Monday 70°F Mostly Sunny 6 mph N 4%
Monday Night 48°F Mostly Clear then Slight Chance Rain Showers 3 mph N 15%
Tuesday 71°F Slight Chance Rain Showers then Sunny 5 mph S 15%
Tuesday Night 50°F Partly Cloudy 3 mph W 9%

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 (4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.