Columbia, South Carolina – Relentless heat grips South Carolina this weekend, with dangerous heat index values reaching as high as 112°F across the Midlands and surrounding counties through Monday evening. Residents in Columbia, Lexington, Sumter, and Orangeburg should prepare for significant impacts as a Heat Advisory remains in effect until 9 p.m. Sunday, with an Extreme Heat Watch continuing through 8 p.m. Monday.
According to the National Weather Service in Columbia, heat advisories are posted for Aiken, Bamberg, Barnwell, Calhoun, Clarendon, Fairfield, Kershaw, Lee, Lexington, Newberry, Orangeburg, Richland, Saluda, and Sumter counties. The heat index is expected to exceed 107°F each afternoon, with actual high temperatures reaching 103°F on Sunday and Monday. Overnight lows will offer little relief, only dropping to the low 80s.
The blistering heat will increase the risk of heat-related illnesses, particularly for children, outdoor workers, and those without access to air conditioning. Officials urge everyone to limit outdoor activities during peak heat, stay hydrated, and check on vulnerable neighbors. Interior temperatures in vehicles and homes without air conditioning may quickly become unsafe.
Travelers on I-20, I-26, and I-77 should anticipate slowdowns or emergency road closures, as highway crews may alter schedules to avoid peak afternoon temperatures. Power companies are also preparing for higher energy use, which may strain the grid.
This dangerous heat wave is expected to persist through Monday, with more advisories or alerts possible if the heat lingers. Residents are advised to monitor updates from local officials and the National Weather Service.
Five Day Columbia, SC Weather Outlook
- Saturday: Sunny and hot, high 100°F. Heat index up to 107°F.
- Sunday: Mostly sunny, high 103°F. Heat index up to 112°F.
- Monday: Scorching, high 103°F. Extreme Heat Watch in effect. Chance of storms late.
- Tuesday: High near 98°F, mostly sunny. Thunderstorms possible at night.
- Wednesday: Partly sunny, high near 98°F. Thunderstorms possible in afternoon and evening.
Stay alert, stay cool, and be ready for extended periods of excessive heat through Monday.
