Harman US

Fort Mill, SC Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Fort Mill, a town in York County, South Carolina.

Tonight
54°F
Mostly Clear
Mostly clear, with a low around 54. East wind around 5 mph.

7-day forecast for Fort Mill

WhenTempForecastWindPrecip
Tonight 54°F Mostly Clear 5 mph E 1%
Wednesday 79°F Partly Sunny 3 to 10 mph SE 3%
Wednesday Night 63°F Showers And Thunderstorms Likely 7 mph SSE 56%
Thursday 78°F Patchy Fog 5 to 8 mph S 48%
Thursday Night 62°F Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms 3 mph SSW 50%
Friday 76°F Showers And Thunderstorms Likely 6 mph WSW 61%
Friday Night 52°F Partly Cloudy 5 mph NW 12%
Saturday 72°F Mostly Sunny 3 to 7 mph N 7%
Saturday Night 45°F Partly Cloudy 5 mph NNE 4%
Sunday 68°F Mostly Sunny 5 mph NW 5%
Sunday Night 43°F Mostly Clear 5 mph WSW 14%
Monday 66°F Sunny 3 to 9 mph W 14%
Monday Night 40°F Mostly Clear 2 to 6 mph WSW 3%
Tuesday 69°F Sunny 3 to 9 mph WSW 3%

Forecast source: National Weather Service (api.weather.gov) for Fort Mill (35.006, -80.940). Updated through the day.

Growing snapshot for Fort Mill

Last spring frost
Mar 31
First fall frost
Nov 4
Growing season
218 days
Hardiness zone
8a

More local growing data for Fort Mill: nearby ZIP 29715 weather · frost dates · planting calendar · South Carolina frost dates

Nearby towns & communities

All South Carolina locations ›

Climate data from the nearest NOAA station, Rock Hill York Co Ap, Sc (7.6 mi from Fort Mill). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.