National Weather Service Forecast for: Simpsonville SC
Issued by: National Weather Service Greenville-Spartanburg, SC
Updated: 6:23 pm EST Dec 17, 2025
 
Tonight

Tonight: Mostly cloudy, with a low around 40. Southwest wind around 5 mph becoming calm in the evening.
Mostly Cloudy
 Thursday

Thursday: Rain likely, mainly after 3pm. Cloudy, with a high near 56. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain Likely
 Thursday
Night
Thursday Night: Rain before 1am, then showers likely, mainly between 1am and 4am. Patchy fog. Low around 44. Southeast wind 6 to 16 mph becoming west southwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Rain and
Patchy Fog
 Friday

Friday: Sunny, with a high near 56. West wind 7 to 14 mph, with gusts as high as 22 mph.
Sunny
 Friday
Night
Friday Night: Mostly clear, with a low around 31. West northwest wind around 5 mph becoming calm in the evening.
Mostly Clear
 Saturday

Saturday: Sunny, with a high near 55.
Sunny
 Saturday
Night
Saturday Night: Mostly clear, with a low around 37.
Mostly Clear
 Sunday

Sunday: Mostly sunny, with a high near 62.
Mostly Sunny
 Sunday
Night
Sunday Night: Mostly clear, with a low around 33.
Mostly Clear
Lo 40 °F Hi 56 °F Lo 44 °F Hi 56 °F Lo 31 °F Hi 55 °F Lo 37 °F Hi 62 °F Lo 33 °F

 

Tonight
 
 Mostly cloudy, with a low around 40. Southwest wind around 5 mph becoming calm in the evening.
Thursday
 
 Rain likely, mainly after 3pm. Cloudy, with a high near 56. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
 
 Rain before 1am, then showers likely, mainly between 1am and 4am. Patchy fog. Low around 44. Southeast wind 6 to 16 mph becoming west southwest after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
 
 Sunny, with a high near 56. West wind 7 to 14 mph, with gusts as high as 22 mph.
Friday Night
 
 Mostly clear, with a low around 31. West northwest wind around 5 mph becoming calm in the evening.
Saturday
 
 Sunny, with a high near 55.
Saturday Night
 
 Mostly clear, with a low around 37.
Sunday
 
 Mostly sunny, with a high near 62.
Sunday Night
 
 Mostly clear, with a low around 33.
Monday
 
 Sunny, with a high near 52.
Monday Night
 
 Partly cloudy, with a low around 34.
Tuesday
 
 Mostly sunny, with a high near 54.
Tuesday Night
 
 Partly cloudy, with a low around 41.
Wednesday
 
 Mostly sunny, with a high near 66.

 

Forecast from NOAA-NWS for Simpsonville SC.