Clear skies and mild early conditions will give way to a hot, humid Friday in Greenville, with temperatures climbing to 93 degrees. The heat index could approach 100 along and south of the I-85 corridor, making the afternoon feel considerably tougher than the thermometer suggests.
The National Weather Service Greenville-Spartanburg office is calling for afternoon and evening showers and thunderstorms. A few storms could become strong to severe and produce damaging winds, according to the National Weather Service.
Storm Chances Rise Saturday
Friday night will see lingering cloud debris and possible stratus, with a low near 70 and a slight chance of thunderstorms and showers. Saturday brings a more active setup, with showers possible in the morning, thunderstorms likely later in the day, a high near 85, and some areas possibly receiving heavy rainfall.
Brighter Weather Returns Next Week
Flood Risk and Safety Context
Heavy Saturday rainfall would come after a recent reminder of the region's flood risk: South Carolina Emergency Management Division records show that Hurricane Helene in September 2024 deposited more than 15 inches of rain in Greenville, Pickens and Oconee counties and produced record-breaking flooding on the Saluda, Broad and Reedy rivers. The available state guidance identifies those river and flood-prone areas as important context but does not specify individual Greenville County road corridors. The agency advises residents to move to higher ground if flash flooding is possible rather than waiting for an evacuation order. Drivers and residents should monitor changing conditions Saturday and avoid remaining in areas threatened by rising water.
Showers and thunderstorms are likely Saturday night, mainly before midnight, and Sunday should see mostly sunny skies and a high near 89. Monday looks sunny with a high near 89, followed by mostly sunny conditions in the upper 80s Tuesday through Thursday, with only limited afternoon storm chances by Thursday.
Friday Heat Calls for Extra Caution
Anyone spending time outside Friday should plan around the hottest afternoon hours, drink plenty of water, and move indoors if thunder is heard. According to the National Weather Service, hot weather combined with high humidity can quickly cause heat-related illness, and people should drink plenty of water or other non-alcoholic fluids. No active watches, warnings, or advisories are listed for South Carolina in the latest forecast, but conditions can change quickly around developing thunderstorms.
