National Weather Service Forecast for: Spartanburg SC
Issued by: National Weather Service Greenville-Spartanburg, SC
Updated: 7:24 pm EDT Jun 29, 2026
 
Overnight

Overnight: Partly cloudy, with a low around 74. Calm wind.
Partly Cloudy
Tuesday

Tuesday: Mostly sunny, with a high near 92. Heat index values as high as 100. Light east northeast wind.
Mostly Sunny
Tuesday
Night
Tuesday Night: Partly cloudy, with a low around 72. Calm wind.
Partly Cloudy
Wednesday

Wednesday: Sunny and hot, with a high near 95. Heat index values as high as 101. Light and variable wind.
Hot
Wednesday
Night
Wednesday Night: Mostly clear, with a low around 74. Calm wind.
Mostly Clear
Thursday

Thursday: Sunny and hot, with a high near 97.
Hot
Thursday
Night
Thursday Night: Mostly clear, with a low around 73.
Mostly Clear
Friday

Friday: Sunny and hot, with a high near 98.
Hot
Friday
Night
Friday Night: Mostly clear, with a low around 74.
Mostly Clear
Lo 74 °F Hi 92 °F Lo 72 °F Hi 95 °F Lo 74 °F Hi 97 °F Lo 73 °F Hi 98 °F Lo 74 °F

 

Overnight
 
Partly cloudy, with a low around 74. Calm wind.
Tuesday
 
Mostly sunny, with a high near 92. Heat index values as high as 100. Light east northeast wind.
Tuesday Night
 
Partly cloudy, with a low around 72. Calm wind.
Wednesday
 
Sunny and hot, with a high near 95. Heat index values as high as 101. Light and variable wind.
Wednesday Night
 
Mostly clear, with a low around 74. Calm wind.
Thursday
 
Sunny and hot, with a high near 97.
Thursday Night
 
Mostly clear, with a low around 73.
Friday
 
Sunny and hot, with a high near 98.
Friday Night
 
Mostly clear, with a low around 74.
Independence Day
 
Sunny and hot, with a high near 99.
Saturday Night
 
Mostly clear, with a low around 75.
Sunday
 
A 30 percent chance of showers and thunderstorms. Sunny and hot, with a high near 97.
Sunday Night
 
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 74.
Monday
 
A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95.

 

Forecast from NOAA-NWS for Spartanburg SC.