Millions of people from the Plains to the South and mid-Atlantic will continue to battle a devastating heat wave that has already reached historic proportions.
Click here to see the latest news story on the unrelenting heat in the U.S.
Multiple cities across multiple states set or tied all-time record high temperatures since last week.
One of the cities hardest hit by this unprecedented heat wave is Charlotte, N.C. For the third consecutive day Sunday, the Queen City tied their all-time record high temperature of 104.
St. Louis, Little Rock, Kansas City and Nashville will in the core of the heat through the week with daytime highs within a few degrees of 100.
Meanwhile, as temperatures may be a few degrees lower around Washington, D.C., Charlotte and Atlanta, it is still dangerously hot. Many folks from the Ohio Valley to Virginia were without power Monday in the wake of devastating storms over the weekend.
For some it means not only no fans, but no running water for homeowners that have independent well water and no means to operate the pump.
Cities along the Eastern Seaboard, such as New York City, Philadelphia and Washington, D.C. will climb well into the 90s through the weekend. Folks in the Ohio Valley will endure highs well into the 90s through the week.
It will also drive more showers and thunderstorms, some of which may turn severe, especially over the Great Lakes
The large dome of high pressure responsible for the heat will slowly weaken through next week, gradually putting an end to the record-setting numbers. However, temperatures will remain well above normal for much of the eastern half of the country through at least Independence Day.
Hawaii will escape the worst, but not all of Guillermo's impacts as the tropical storm passes north of the islands Wednesday through Thursday.
A line of violent thunderstorms tore across Massachusetts, including the Boston area, Tuesday afternoon.
The Northeast will catch a break from heat and humidity for the remainder of the week.
Super Typhoon Soudelor in the western Pacific Ocean will remain a powerful tropical cyclone this week eventually threatening Taiwan and eastern China.
An area of low pressure spinning off the coast of the Carolinas is attempting to obtain some tropical characteristics.
Two spectators were killed and at least another 32 people were injured Monday evening, as strong storms forced a circus tent to collapse in Lancaster, New Hampshire.
Erie, PA (1915)
Flood killed 75 people, many streets flooded, bridges torn out.
Ossian, IA (1979)
Strong winds from a thunderstorm damaged a roller rink roof 50 miles NE of Waterloo, IA. A barn was destroyed and trees and power lines were downed.
Dallas, TX (1980)
A high of 95 degrees, breaking the string of 42 consecutive days of 100 degrees or higher.