National Weather Service Forecast for: Fort Mill SC
Issued by: National Weather Service Greenville-Spartanburg, SC
Updated: 12:18 am EST Dec 23, 2025
 
Overnight

Overnight: Mostly cloudy, with a low around 36. Calm wind.
Mostly Cloudy
 Tuesday

Tuesday: Mostly cloudy, then gradually becoming sunny, with a high near 63. Southwest wind 5 to 14 mph, with gusts as high as 24 mph.
Decreasing
Clouds
 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 46. West southwest wind 3 to 7 mph.
Mostly Clear
 Wednesday

Wednesday: Sunny, with a high near 71. Light and variable wind.
Sunny
 Wednesday
Night
Wednesday Night: Mostly cloudy, with a low around 48. Light and variable wind.
Mostly Cloudy
 Christmas
Day
Christmas Day: Sunny, with a high near 72.
Sunny
 Thursday
Night
Thursday Night: Partly cloudy, with a low around 51.
Partly Cloudy
 Friday

Friday: Mostly cloudy, with a high near 68.
Mostly Cloudy
 Friday
Night
Friday Night: Partly cloudy, with a low around 54.
Partly Cloudy
Lo 36 °F Hi 63 °F Lo 46 °F Hi 71 °F Lo 48 °F Hi 72 °F Lo 51 °F Hi 68 °F Lo 54 °F

 

Overnight
 
 Mostly cloudy, with a low around 36. Calm wind.
Tuesday
 
 Mostly cloudy, then gradually becoming sunny, with a high near 63. Southwest wind 5 to 14 mph, with gusts as high as 24 mph.
Tuesday Night
 
 Mostly clear, with a low around 46. West southwest wind 3 to 7 mph.
Wednesday
 
 Sunny, with a high near 71. Light and variable wind.
Wednesday Night
 
 Mostly cloudy, with a low around 48. Light and variable wind.
Christmas Day
 
 Sunny, with a high near 72.
Thursday Night
 
 Partly cloudy, with a low around 51.
Friday
 
 Mostly cloudy, with a high near 68.
Friday Night
 
 Partly cloudy, with a low around 54.
Saturday
 
 Mostly sunny, with a high near 74.
Saturday Night
 
 Partly cloudy, with a low around 55.
Sunday
 
 Partly sunny, with a high near 72.
Sunday Night
 
 Mostly cloudy, with a low around 34.
Monday
 
 Sunny, with a high near 44.

 

Forecast from NOAA-NWS for Fort Mill SC.