The soupy, smothering extreme heat that has scorched parts of the Northern Hemisphere this summer takes a hard toll on our ...

Cooler temperatures are expected Saturday, but they won’t last long, Environment Canada says, as a heat warning continues ...

The Greater Toronto Area was hit with the start of another wave of scorching heat Thursday, with Environment Canada warning ...

Feel like the heat never ends? That’s because heat streaks, or the number of consecutive hot days, are also on the rise ...

A lingering heat dome over the eastern half of the U.S. is putting tens of millions of people in sweltering conditions, with ...

Travel delays are mounting as airports on the east coast experience ground stops due to thunderstorms. Chicago streets were ...

A phenomenon called "corn sweat" could exacerbate the impacts of the extreme heat blanketing a large portion of the U.S., ...

At least 100 Americans are on alert for dangerous heat and humidity -- stretching from Texas to Maine -- on Friday.