Add Yahoo as a preferred source to see more of our stories on Google. Some all-time record heat could scorch portions of the United States on the weekend of July 11. This time, the western and central U.S. could see a widespread and significant heat wave ...

Long hours outdoors, day drinking, and World Cup matches are among the factors raising the risks of heat-related illness, as hot weather spreads across the eastern US. Temperatures are expected to reach 100 degrees Fahrenheit (38 Celsius) by Thursday, with ...

As the U.S. recovers from its July 4 heat wave, a new study in Nature Health warns of an impending uptick in people attending hospitals for mental health and behavioral disorders, according to the first multicountry study of heat wave-related mental health ...

Add Yahoo as a preferred source to see more of our stories on Google. Roughly 100 million people across the United States are facing extreme temperatures this week as a heat dome scorching the western part of the country spreads to the Northeast.

Much of the US just sweltered through the July 4 holiday weekend as an intense heat dome bore down, straining power grids and prompting the cancellation of many events. Washington, DC, saw a high of 102F (39C) on Saturday, a new local record for the date.

A dangerous heat wave is underway in Philadelphia and the surrounding suburbs this week, just as the long holiday weekend is set to draw people outside for Fourth of July celebrations. A NEXT Weather Alert is in effect through Sunday. Temperatures each day ...