National Weather Service Forecast for: Greer SC
Issued by: National Weather Service Greenville-Spartanburg, SC
Updated: 2:23 am EDT Aug 20, 2026
 
Today

Today: Mostly sunny and hot, with a high near 95. Heat index values as high as 101. Calm wind becoming south southwest around 6 mph in the afternoon.
Hot

 Tonight

Tonight: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 72. West wind around 5 mph becoming calm in the evening.
Slight Chance
T-storms then
Partly Cloudy
 Friday

Friday: Showers and thunderstorms likely, mainly after 5pm. Increasing clouds, with a high near 91. Heat index values as high as 101. East northeast wind 3 to 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Mostly Sunny
then T-storms
Likely
 Friday
Night
Friday Night: Showers and thunderstorms likely, mainly before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 69. East southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
T-storms
Likely then
Chance
Showers
 Saturday

Saturday: Mostly sunny, with a high near 90. Light and variable wind.
Mostly Sunny

 Saturday
Night
Saturday Night: Mostly clear, with a low around 69.
Mostly Clear

 Sunday

Sunday: Sunny, with a high near 90.
Sunny

 Sunday
Night
Sunday Night: Mostly clear, with a low around 67.
Mostly Clear

 Monday

Monday: Sunny, with a high near 89.
Sunny
Hi 95 °F Lo 72 °F Hi 91 °F Lo 69 °F Hi 90 °F Lo 69 °F Hi 90 °F Lo 67 °F Hi 89 °F

 

Today
 
 Mostly sunny and hot, with a high near 95. Heat index values as high as 101. Calm wind becoming south southwest around 6 mph in the afternoon.
Tonight
 
 A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 72. West wind around 5 mph becoming calm in the evening.
Friday
 
 Showers and thunderstorms likely, mainly after 5pm. Increasing clouds, with a high near 91. Heat index values as high as 101. East northeast wind 3 to 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
 
 Showers and thunderstorms likely, mainly before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 69. East southeast wind around 6 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
 
 Mostly sunny, with a high near 90. Light and variable wind.
Saturday Night
 
 Mostly clear, with a low around 69.
Sunday
 
 Sunny, with a high near 90.
Sunday Night
 
 Mostly clear, with a low around 67.
Monday
 
 Sunny, with a high near 89.
Monday Night
 
 Mostly clear, with a low around 67.
Tuesday
 
 Sunny, with a high near 89.
Tuesday Night
 
 Mostly clear, with a low around 68.
Wednesday
 
 A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.

 

Forecast from NOAA-NWS for Greer SC.