Extremely dangerous heat, coupled with humidity, could result in heat index readings of 100 to 115 degrees from the Midwest ...

A heat wave will spread across the United States this week. Use the forecast tool to see how hot it will get where you live.

"These levels of heat mean health impacts become more likely in general," the National Weather Service warned.

Extreme and prolonged heat waves have engulfed much of Britain and Europe in recent weeks, and now Canada and the United States are facing their turns, with temperatures set to soar to record-breaking ...

A hot and dry wave of high pressure is expected to raise temperatures to dangerous levels across the Eastern half of the ...