National Weather Service Forecast for: Simpsonville SC
Issued by: National Weather Service Greenville-Spartanburg, SC
Updated: 12:18 pm EST Dec 23, 2025
 
Tonight

Tonight: Clear, with a low around 48. West southwest wind 6 to 11 mph, with gusts as high as 20 mph.
Clear
 Wednesday

Wednesday: Sunny, with a high near 73. West wind around 5 mph becoming calm in the morning.
Sunny
 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 51. Calm wind.
Partly Cloudy
 Christmas
Day
Christmas Day: Sunny, with a high near 75. West southwest wind 5 to 11 mph, with gusts as high as 18 mph.
Sunny
 Thursday
Night
Thursday Night: Mostly clear, with a low around 51. West wind 5 to 7 mph.
Mostly Clear
 Friday

Friday: Partly sunny, with a high near 68.
Partly Sunny
 Friday
Night
Friday Night: Partly cloudy, with a low around 54.
Partly Cloudy
 Saturday

Saturday: Sunny, with a high near 75.
Sunny
 Saturday
Night
Saturday Night: Mostly cloudy, with a low around 55.
Mostly Cloudy
Lo 48 °F Hi 73 °F Lo 51 °F Hi 75 °F Lo 51 °F Hi 68 °F Lo 54 °F Hi 75 °F Lo 55 °F

 

Tonight
 
 Clear, with a low around 48. West southwest wind 6 to 11 mph, with gusts as high as 20 mph.
Wednesday
 
 Sunny, with a high near 73. West wind around 5 mph becoming calm in the morning.
Wednesday Night
 
 Partly cloudy, with a low around 51. Calm wind.
Christmas Day
 
 Sunny, with a high near 75. West southwest wind 5 to 11 mph, with gusts as high as 18 mph.
Thursday Night
 
 Mostly clear, with a low around 51. West wind 5 to 7 mph.
Friday
 
 Partly sunny, with a high near 68.
Friday Night
 
 Partly cloudy, with a low around 54.
Saturday
 
 Sunny, with a high near 75.
Saturday Night
 
 Mostly cloudy, with a low around 55.
Sunday
 
 Partly sunny, with a high near 74.
Sunday Night
 
 A 30 percent chance of rain. Mostly cloudy, with a low around 41.
Monday
 
 Mostly sunny, with a high near 53.
Monday Night
 
 Mostly clear, with a low around 22.
Tuesday
 
 Sunny, with a high near 42.

 

Forecast from NOAA-NWS for Simpsonville SC.