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.

As temperatures continue to climb, doctors are warning people to take care of themselves and monitor their time in the heat.

PHILADELPHIA (WPVI) -- It's wet and chilly with temperatures nearly 20 degrees below average the next two days. WEDNESDAY: Feeling more like early-April with periods of rain, high 57. Winds also ...