Last weekend's storms have left thousands without electricity now they must also battle extremely hot weather, the AP wrote.
On Saturday, hundreds of thousands still had no power in West Virginia, Ohio and Michigan.
MSNBC reported in recent days the state of Virginia saw 10 heat-related deaths, Maryland saw 9, and Illinois, 6. Three of the dead were children, with the rest adults between the age of 45 and 83.
According to the Wall Street Journal, Washington, St. Louis, Louisville, Ky. and Philadelphia also saw temperatures over 100 degrees. The paper reported the extreme heat buckled highways and derailed a Washington-area train.