NWS Forecast for Fort Mill SC

National Weather Service Forecast for: Fort Mill SC
Issued by: National Weather Service Greenville-Spartanburg, SC

Updated: 2:38 pm EDT Jul 28, 2026

Tonight Chance T-storms then Clear	Wednesday Sunny	Wednesday Night Clear	Thursday Sunny	Thursday Night Clear	Friday Sunny	Friday Night Mostly Clear	Saturday Partly Sunny	Saturday Night Chance Showers
Lo 71 °F	Hi 90 °F	Lo 65 °F	Hi 87 °F	Lo 65 °F	Hi 89 °F	Lo 71 °F	Hi 89 °F	Lo 71 °F

Tonight	A 30 percent chance of showers and thunderstorms, mainly before 10pm. Mostly cloudy, then gradually becoming clear, with a low around 71. West southwest wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 20 mph. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday	Sunny, with a high near 90. North northwest wind 5 to 8 mph.
Wednesday Night	Clear, with a low around 65. North wind 5 to 7 mph.
Thursday	Sunny, with a high near 87. North wind 5 to 7 mph.
Thursday Night	Clear, with a low around 65. Light north northeast wind.
Friday	Sunny, with a high near 89.
Friday Night	Mostly clear, with a low around 71.
Saturday	Partly sunny, with a high near 89.
Saturday Night	A 30 percent chance of showers after 8pm. Mostly cloudy, with a low around 71.
Sunday	A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 85. Chance of precipitation is 60%.
Sunday Night	Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 72. Chance of precipitation is 60%.
Monday	A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 84.
Monday Night	A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72.
Tuesday	A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.

Forecast from NOAA-NWS for Fort Mill SC.