Humanity’s burning of fossil fuels directly led to the deaths of at least 1,500 people in a European heatwave last week, a landmark study said.

A large dome of heat will envelop all of Colorado and the entire Rocky Mountain region on Wednesday. Many high temperatures will likely tie or break record numbers.

Big changes [are] coming ... as high pressure over Arizona expands west into Southern California,' the weather service warns.

In July 1995, 739 Chicagoans died during a five-day heat wave that shocked the city.

A brutal heat wave across the eastern United States trapped millions of people in sweltering air this week with record-high temperatures.

In June 2021, a deadly heat wave pushed temperatures to 109°F (43°C) in Spokane, Washington, a northern city near the Idaho border where many homes weren't built with central air conditioning.

Summer is underway and WA residents are turning on the fan or air conditioning. But can utility companies cut power if the grid is strained?

Boston is on the verge of a second heat wave with temperatures back into the 90s and high humidity prompting afternoon showers and thunderstorms.

A mini heat wave is expected to bring triple digit temperatures to some parts of Southern California this week.