An extremely dangerous heat wave is underway for the eastern half of the United States, with Tuesday expected to bring peak ...

Tuesday was predicted to be the worst day of City’s three-day heat wave, though Wednesday is hardly expected to bring a ...

Extreme heat warnings and heat advisories remained in place all the way from St. Louis to Boston on June 24, the National Weather Service said. Other cities enduring these alerts include Chicago, ...

A heat wave hit much of the central U.S. over the weekend, while snow and cool temperatures arrived in the Northwest.

Some heat safety tips are obvious — but some are surprising. Know how much water to drink and why humidity actually matters.

Collegeville in Jasper County has the dubious honor of recording the hottest daily temperature ever in Indiana. Here's when it happened.