The National Weather Service called the warm and above-average temperatures coming in behind the system "the first ...

By the weekend, large swaths of Britain are expected to tip into an official heat wave, with temperatures surging well above ...

Heat is the number one killer -- and it’s heading to the most densely populated part of America for a prolonged period.

The National Weather Service predicts the first 90-degree day will be on Sunday, with a high of 93 degrees, while AccuWeather ...

The first major U.S. heat wave of the year starts on Friday. It brings dangerously high temperatures and is expected to last ...

The first significant heat wave of the summer is taking aim at a huge chunk of the United States later this week, and ...

Heat indices could spike into the triple digits on June 22 and June 23 as both the temperature and humidity reach their ...

The average first 110-degree day in Phoenix falls on June 11, but has come as early as May 8 in 1989. A June heat wave is a ...

STATEN ISLAND, N.Y. — After weeks of predominantly chilly and wet weather, New York City will finally see some summer heat.

A heat wave is in the forecast for eastern Nebraska this weekend, with the heat index predicted to reach triple digits.