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.
This Afternoon
95°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 95. Heat index values as high as 103. North wind around 2 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Fort Mill
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 95°F | Chance Showers And Thunderstorms | 2 mph N | 35% |
| Tonight | 70°F | Chance Showers And Thunderstorms | 2 mph NNW | 47% |
| Saturday | 89°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 2 to 7 mph NNE | 24% |
| Saturday Night | 69°F | Chance Showers And Thunderstorms | 1 to 7 mph ENE | 28% |
| Sunday | 88°F | Patchy Fog then Slight Chance Showers And Thunderstorms | 2 mph SE | 17% |
| Sunday Night | 69°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 mph SW | 15% |
| Monday | 90°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 3 mph SSW | 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 7 mph NE | 62% |
| Tuesday Night | 65°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 6 to 9 mph NE | 62% |
| Wednesday | 76°F | Chance Rain Showers | 13 mph NE | 36% |
| Wednesday Night | 62°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 7 to 13 mph NE | 30% |
| Thursday | 77°F | Partly Sunny | 10 mph NNE | 13% |
| Thursday Night | 60°F | Partly Cloudy | 5 to 9 mph NNE | 9% |
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
Baxter Village
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Hickory Grove
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Lowrys
McConnells
Newport
Riverview
Rock Hill
Sharon
Smyrna
Tega Cay
Van Wyck
York
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 Sep 18, 2026.