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James Island, SC Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for James Island, a town in Charleston County, South Carolina.

Overnight
68°F
Partly Cloudy
Partly cloudy, with a low around 68. Northeast wind around 6 mph.

7-day forecast for James Island

WhenTempForecastWindPrecip
Overnight 68°F Partly Cloudy 6 mph NE 1%
Wednesday 78°F Mostly Sunny 6 to 9 mph E 3%
Wednesday Night 68°F Mostly Cloudy 1 to 5 mph SE 3%
Thursday 79°F Mostly Sunny 1 to 7 mph S 5%
Thursday Night 68°F Partly Cloudy 3 mph S 1%
Friday 78°F Chance Rain Showers 2 to 9 mph SW 41%
Friday Night 62°F Chance Rain Showers then Partly Cloudy 5 mph W 41%
Saturday 74°F Sunny 6 mph NE 1%
Saturday Night 54°F Partly Cloudy 3 to 7 mph NE 1%
Sunday 70°F Mostly Sunny 3 to 8 mph NE 1%
Sunday Night 52°F Partly Cloudy 5 mph N 3%
Monday 69°F Mostly Sunny 6 mph N 4%
Monday Night 51°F Mostly Clear then Slight Chance Rain Showers 5 mph N 15%
Tuesday 70°F Slight Chance Rain Showers then Sunny 6 mph SE 15%

Forecast source: National Weather Service (api.weather.gov) for James Island (32.736, -79.937). Updated through the day.

Growing snapshot for James Island

Last spring frost
Feb 4
First fall frost
Dec 30
Growing season
321 days
Hardiness zone
9a

More local growing data for James Island: nearby ZIP 29412 weather · frost dates · planting calendar · South Carolina frost dates

Nearby towns & communities

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Climate data from the nearest NOAA station, Charleston City, Sc (4.8 mi from James Island). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.