The dangerous heat gripping the D.C. region isn’t going anywhere just yet. Tuesday will bring another sweltering day, with temperatures climbing into the mid to upper 90s and heat index values expected to reach 100 to 110 degrees by the afternoon.

A long-lasting extreme heat wave reached its dangerous crescendo Tuesday, bringing the hottest day in a decade to some major East Coast cities and putting millions of already fatigued Americans at risk.

The National Weather Service has issued an extreme heat warning starting from 11 a.m. to 9 p.m., as temperatures are forecast to reach highs between 97 and 102, with a heat index between 105 and 110. “It’ll be the hottest day in nearly a year for D.C.,” said 7News First Alert Chief Meteorologist Veronica Johnson.