by: Bob Jeswald Posted: Jun 27, 2026 / 08:35 AM EDT Updated: Jun 27, 2026 / 08:52 AM EDT COLUMBUS, Ga. (WRBL)-The forecast will begin to heat up as a strong ridge of high pressure, often referred to as a “heat dome,” builds over the region. This will push afternoon temperatures into the mid-90s, with heat index values climbing into the lower 100s.