National Weather Service Forecast for: Clemson SC
Issued by: National Weather Service Greenville-Spartanburg, SC
Updated: 2:29 am EDT Jun 22, 2026
 
Today

Today: Showers and thunderstorms likely, mainly between 3pm and 5pm. Increasing clouds, with a high near 88. Light south southwest wind becoming west southwest 8 to 13 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Mostly Sunny
then T-storms
Likely
 Tonight

Tonight: Showers and thunderstorms likely before 2am, then a slight chance of showers. Mostly cloudy, with a low around 71. West southwest wind 7 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
T-storms
Likely then
Chance
Showers
 Tuesday

Tuesday: Mostly sunny, with a high near 89. West wind around 7 mph.
Mostly Sunny

 Tuesday
Night
Tuesday Night: Mostly clear, with a low around 67. North wind around 5 mph becoming calm in the evening.
Mostly Clear

 Wednesday

Wednesday: Sunny, with a high near 86. Calm wind becoming east northeast around 5 mph.
Sunny

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

 Thursday

Thursday: Mostly sunny, with a high near 89.
Mostly Sunny

 Thursday
Night
Thursday Night: A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 71.
Chance
T-storms

 Friday

Friday: Mostly sunny, with a high near 90.
Mostly Sunny
Hi 88 °F Lo 71 °F Hi 89 °F Lo 67 °F Hi 86 °F Lo 69 °F Hi 89 °F Lo 71 °F Hi 90 °F

 

Today
 
 Showers and thunderstorms likely, mainly between 3pm and 5pm. Increasing clouds, with a high near 88. Light south southwest wind becoming west southwest 8 to 13 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
 
 Showers and thunderstorms likely before 2am, then a slight chance of showers. Mostly cloudy, with a low around 71. West southwest wind 7 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
 
 Mostly sunny, with a high near 89. West wind around 7 mph.
Tuesday Night
 
 Mostly clear, with a low around 67. North wind around 5 mph becoming calm in the evening.
Wednesday
 
 Sunny, with a high near 86. Calm wind becoming east northeast around 5 mph.
Wednesday Night
 
 Mostly clear, with a low around 69.
Thursday
 
 Mostly sunny, with a high near 89.
Thursday Night
 
 A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 71.
Friday
 
 Mostly sunny, with a high near 90.
Friday Night
 
 Partly cloudy, with a low around 72.
Saturday
 
 Mostly sunny, with a high near 91.
Saturday Night
 
 Mostly clear, with a low around 73.
Sunday
 
 Sunny, with a high near 94.

 

Forecast from NOAA-NWS for Clemson SC.