A heat dome is baking the United States. Here’s why that’s so dangerous

Our bodies aren’t used to summer temperatures yet, raising the risk of heat-related illnesses

a group of people including EMTs huddle around an older white man drinking from a bottle of water while sitting on the ground in Washington D.C.

A man is attended to after fainting in the heat outside the U.S. Supreme Court in Washington, D.C. on June 20. Heat wave temperatures across the Midwest and Northeast are hovering around 38° Celsius (100° Fahrenheit) in many places.

Andrew Harnik/Getty Images

June is the new July.