ABC News Medical Correspondent Dr. Darien Sutton breaks down the differences between heat exhaustion and heat stroke. Plus, ...

Heat advisories were in effect for a large portion of the East Coast from central Florida to Virginia through much of the ...

Millions of Americans across almost a dozen states were instructed to stay out of the sun and limit outdoor activities, as ...

Widespread heat warnings are in effect across southern Ontario as a multi-day heat event builds across the region. Expect the ...

Environment Canada is warning of another "multi-day heat event" that will bring temperatures in the low-to-mid 30s to ...

The leaders of Cambodia and Thailand have agreed to meet for ceasefire talks after days of cross-border violence, according to statements on Saturday from both sides as well as US ...

The National Weather Service (NWS) issued heat advisories for large portions of the East Coast and Midwest through most of ...

Communities from Sault Ste. Marie to North Bay are under continued heat warnings this week, as Environment Canada warns of ...

Humidex values of 38 to 42. Nighttime low temperatures of 19 to 23 degrees Celsius, providing little relief from the heat.

First Steps” is topping the domestic box office charts in its first weekend in theaters. The Walt Disney Co. said Sunday that ...

Dogs and their owners took to the waves on Sunday for the annual U.K. Dog Surfing Championship on the English south coast.