Fort Mill, SC Weather & Growing Conditions
Tonight
54°F
Mostly Clear
Mostly clear, with a low around 54. East wind around 5 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Mostly Clear | 5 mph E | 1% |
| Wednesday | 80°F | Partly Sunny | 3 to 10 mph SE | 3% |
| Wednesday Night | 63°F | Showers And Thunderstorms Likely | 7 mph S | 55% |
| 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 S | 50% |
| Friday | 77°F | Showers And Thunderstorms Likely | 2 to 6 mph SW | 62% |
| Friday Night | 53°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 NE | 4% |
| Sunday | 68°F | Mostly Sunny | 5 mph NW | 5% |
| Sunday Night | 43°F | Mostly Clear | 5 mph W | 14% |
| Monday | 67°F | Sunny | 3 to 9 mph W | 14% |
| Monday Night | 40°F | Mostly Clear | 2 to 6 mph SW | 4% |
| Tuesday | 69°F | Sunny | 3 to 9 mph SW | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Fort Mill, SC
Last spring frost
Mar 31
First fall frost
Nov 4
Growing season
218 days
Hardiness zone
8a
Explore more for Fort Mill, SC: full frost dates · planting calendar · South Carolina frost dates
Climate data from the nearest NOAA station, Rock Hill York Co Ap, Sc (7.6 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.