National Weather Service Forecast for: Fort Mill SC
Issued by: National Weather Service Greenville-Spartanburg, SC
Updated: 2:23 pm EDT Mar 19, 2026
 
Tonight

Tonight: Mostly clear, with a low around 39. Calm wind.
Mostly Clear
 Friday

Friday: Increasing clouds, with a high near 72. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Increasing
Clouds
 Friday
Night
Friday Night: Partly cloudy, with a low around 53. South southwest wind around 7 mph.
Partly Cloudy
 Saturday

Saturday: Partly sunny, with a high near 81. West wind around 6 mph.
Partly Sunny
 Saturday
Night
Saturday Night: Mostly clear, with a low around 57. Calm wind.
Mostly Clear
 Sunday

Sunday: Sunny, with a high near 85.
Sunny
 Sunday
Night
Sunday Night: Mostly clear, with a low around 63.
Mostly Clear
 Monday

Monday: Mostly sunny, with a high near 83.
Mostly Sunny
 Monday
Night
Monday Night: Mostly clear, with a low around 45.
Mostly Clear
Lo 39 °F Hi 72 °F Lo 53 °F Hi 81 °F Lo 57 °F Hi 85 °F Lo 63 °F Hi 83 °F Lo 45 °F

 

Tonight
 
 Mostly clear, with a low around 39. Calm wind.
Friday
 
 Increasing clouds, with a high near 72. Calm wind becoming southwest 5 to 9 mph in the afternoon.
Friday Night
 
 Partly cloudy, with a low around 53. South southwest wind around 7 mph.
Saturday
 
 Partly sunny, with a high near 81. West wind around 6 mph.
Saturday Night
 
 Mostly clear, with a low around 57. Calm wind.
Sunday
 
 Sunny, with a high near 85.
Sunday Night
 
 Mostly clear, with a low around 63.
Monday
 
 Mostly sunny, with a high near 83.
Monday Night
 
 Mostly clear, with a low around 45.
Tuesday
 
 Mostly sunny, with a high near 64.
Tuesday Night
 
 Mostly cloudy, with a low around 46.
Wednesday
 
 Partly sunny, with a high near 67.
Wednesday Night
 
 Partly cloudy, with a low around 49.
Thursday
 
 Mostly sunny, with a high near 74.

 

Forecast from NOAA-NWS for Fort Mill SC.