Fort Mill, SC Weather & Growing Conditions
Overnight
70°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 70. Northwest wind around 2 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 70°F | Chance Showers And Thunderstorms | 2 mph NW | 29% |
| Saturday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 7 mph NE | 20% |
| Saturday Night | 69°F | Slight Chance Showers And Thunderstorms | 1 to 7 mph E | 24% |
| Sunday | 89°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 mph SE | 16% |
| Sunday Night | 69°F | Partly Cloudy | 2 mph SW | 14% |
| Monday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 3 mph S | 44% |
| Monday Night | 68°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 3 mph E | 70% |
| Tuesday | 83°F | Showers And Thunderstorms Likely | 3 to 8 mph NE | 63% |
| Tuesday Night | 66°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 9 mph NE | 63% |
| Wednesday | 77°F | Chance Rain Showers | 10 to 14 mph NE | 36% |
| Wednesday Night | 62°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 7 to 13 mph NE | 30% |
| Thursday | 78°F | Partly Sunny | 12 mph NE | 13% |
| Thursday Night | 60°F | Partly Cloudy | 5 to 9 mph NE | 9% |
| Friday | 78°F | Partly Sunny | 9 mph N | 8% |
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 Sep 19, 2026.