Heat warnings are increasing in major cities. At its most basic: the heat index is what the temperature feels like when ...

It's not until mid July that the average peak temperature as measured at Palm Beach International Airport reaches 90 degrees.

South Florida is once again seeing a surge in heat as summer approaches, and experts are reminding residents to take steps to stay safe.

It’s already hot across parts of the U.S., with some communities seeing 90- and 100-degree days - and forecasters say it's ...

Known as urban heat islands, these densely built areas filled with concrete, asphalt and limited greenery can be several ...