New heat records were established this weekend. Greenville, South Carolina, hit 100F, breaking the previous record of 99F. The last time the Greenville area reached 100°F was on July 5, 2024, and the all-time high record in the region is 107°F. Columbia reached 99F on Saturday and 101F on Sunday. Close to the 103F record for the day established in 1949, but no dice.
Along the coast, where extreme heat warnings remain in effect at least through Monday night, the lows were the ones setting records. The low on Sunday only dropped to 78 degrees, tying the old record set in 2012. Along the northern coast of South Carolina, a record high was set in Florence on Sunday afternoon when the temperature reached 103, breaking the previous record of 101 set in 2005.
The heat continues through the first half of the workweek.
Extreme heat warnings are in effect for the coast, from the Pee Dee through the Lowcountry, until 8 p.m. on Monday. Dangerously hot conditions, combined with high humidity, could feel as hot as 113 degrees.
For the Midlands, a heat advisory has been issued, as hot temperatures combined with humidity could make the temperatures feel as high as 112°F.
Across the Upstate, a heat advisory is in effect from noon until 8 p.m. on Monday, primarily for areas east of the mountains. The heat indices may cause heat-related illnesses as they could feel as high as 108°F.
A heat advisory is issued when heat conditions are expected to reach a certain threshold, indicating that conditions could be potentially dangerous and may lead to heat-related illnesses if proper precautions are not taken.
An extreme heat warning is issued when dangerously hot conditions are expected, indicating a potentially life-threatening situation where heat stroke or other serious heat-related illnesses could occur.
The heat exacerbates illnesses related to these extreme weather conditions. Make sure to drink plenty of water throughout the day. Do not wait until you are thirsty to drink water, as you could you could be dehydrated. Limit your time outdoors, take care of the elderly and kids, as they are more vulnerable to these extremely hot temperatures. If you are outdoors, be sure to take breaks frequently in the shade or, even better, come indoors to air-conditioned areas.
When will it cool down?
Much of the Palmetto State will continue with extreme heat and temperatures around 10 degrees above average at least through Wednesday. The good news is that temperatures are on a gradual downward trend. By Thursday, a cold front will inch closer from the west, increasing cloud cover and also increasing the chance for showers and thunderstorms. We will be monitoring the opportunity for the storms to become severe and keep you updated on TV, Radio, and on this site.