NWS Forecast for Simpsonville SC

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

Updated: 2:38 pm EDT Jul 28, 2026

Tonight Slight Chance T-storms then Mostly Clear	Wednesday Sunny	Wednesday Night Mostly Clear	Thursday Sunny	Thursday Night Mostly Clear	Friday Sunny	Friday Night Partly Cloudy	Saturday Partly Sunny	Saturday Night Chance Showers
Lo 73 °F	Hi 91 °F	Lo 67 °F	Hi 88 °F	Lo 67 °F	Hi 89 °F	Lo 70 °F	Hi 88 °F	Lo 70 °F

Tonight	A slight chance of showers and thunderstorms between 8pm and 11pm. Mostly cloudy, then gradually becoming clear, with a low around 73. West southwest wind 9 to 14 mph becoming light west northwest. Winds could gust as high as 23 mph. Chance of precipitation is 20%.
Wednesday	Sunny, with a high near 91. North wind around 8 mph.
Wednesday Night	Mostly clear, with a low around 67. North wind 5 to 13 mph, with gusts as high as 21 mph.
Thursday	Sunny, with a high near 88. North wind around 6 mph.
Thursday Night	Mostly clear, with a low around 67. North northeast wind around 7 mph.
Friday	Sunny, with a high near 89.
Friday Night	Partly cloudy, with a low around 70.
Saturday	Partly sunny, with a high near 88.
Saturday Night	A 40 percent chance of showers after 8pm. Mostly cloudy, with a low around 70.
Sunday	A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.
Sunday Night	Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Monday	Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
Monday Night	Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Tuesday	A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 85.

Forecast from NOAA-NWS for Simpsonville SC.