All you need to know about the heat wave can be found on the national weather map. From the Deep South all the way up into New England and the upper Great Lakes region, temperatures have been sweltering in the 90s and higher.
Cities like Billings Mont., Wichita Kan., and Boise Idaho have registered triple-digit temperatures. Adding the humidity factor gives a heat index of 100°F and higher to most of the United States.