Spartanburg, South Carolina, is gearing up for a sweltering Friday, with high humidity and temperatures near 95°F. As the day progresses, afternoon thunderstorms are expected to roll in, bringing gusty winds, brief downpours, and a heightened risk of lightning. This could disrupt outdoor plans and create challenges for motorists.
Scorching Temperatures and Afternoon Thunderstorms
The National Weather Service in Greenville-Spartanburg reports that heat indices on Friday, June 27, could reach a sizzling 103°F due to the combination of high humidity and temperatures.
Thunderstorms are likely to develop after 2 p.m., particularly along I-85 and nearby areas across Upstate South Carolina. While new rainfall amounts are expected to be minimal—under a tenth of an inch—isolated storms could produce heavier rainfall.
Motorists should consider avoiding non-essential travel during the peak storm hours in the afternoon and evening. For those without reliable cooling systems, it’s important to stay indoors, drink plenty of water, and limit outdoor activities during the hottest parts of the day to prevent heat-related illnesses.
Continued Storms Into Saturday
Storms will continue into the night, especially before 2 a.m. on Saturday. Temperatures will remain hot on Saturday, reaching a high of around 91°F, with another round of thunderstorms likely in the afternoon. The chance of storms will be around 30%, so it’s a good idea to keep an eye on the forecast if you’re planning outdoor activities.
Drier and Cooler Sunday, But Still Some Rain
Sunday will offer a brief respite from the intense heat, with partly cloudy skies and highs around 92°F. However, isolated showers may linger into Sunday night, though the conditions will generally be drier and slightly cooler than earlier in the weekend.
5-Day Weather Outlook for Spartanburg, South Carolina
Thursday (June 26): Mostly sunny with a slight chance of storms after 2 p.m., high near 95°F.
Friday (June 27): Thunderstorms likely after 2 p.m., high near 95°F, heat index around 103°F.
Saturday (June 28): 30% chance of storms after 2 p.m., high of 91°F.
Sunday (June 29): Partly cloudy, high near 92°F, storm chance late.
Monday (July 1): Mostly cloudy with a chance of storms, high near 88°F.
