Nearly 160 million people are under heat alerts from eastern Texas to Maine, as temperatures are forecasted to be as much as ...

A long-lasting extreme heat wave reached its dangerous crescendo Tuesday, bringing the hottest day in a decade to some major ...

Toronto Public Health says the heat event that gripped the city from Sunday to Tuesday is being blamed for 42 trips to ...

Extreme heat makes it especially hard for your body to cool down, so you need to be extra careful if you exercise or play ...

Millions of Americans are living under extreme heat warnings and advisories this week, as some fear staff and funding cuts ...

If greenhouse gas emissions remain unchecked, Boston's average summer highs could rise by 9 degrees by 2100, according to ...

The temperature in New York City has reached 100 degrees as the eastern U.S. sweltered under an extreme heat wave.

As temperatures rise, so do the risks for individuals with heart conditions, according to the American Heart Association.

Philadelphia is under an extreme heat warning with heat index values up to 105 degrees, advising residents to stay cool and ...

Furnace-like heat and the threat of thunder and lightning are wreaking havoc at the Club World Cup -- and more of the same is ...

Yesterday’s system demand reached approximately 92% of ISO New England’s all-time peak, levels not seen since 2010,” utility ...