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

A record-challenging heat is stifling South Florida with temperatures not typically seen until deep summer as a loitering ...

The high May 19 is expected to reach 95, with a heat index of 97 to 98 degrees. Near record temps are expected from May 19 ...

Heat is a killer, so don't take Florida summers lightly. Follow our coverage as we give you the latest on what's happening ...

Heat cramps, painful muscle cramps and spasms, usually in the legs and abdomen, may also be a symptom of heat exhaustion.

In Los Angeles, summer-like temperatures are set to hit the area by midweek. Forecasters are warning that the high could ...

As a punishing heat wave took hold of Texas, weather forecasters warned that severe storms with hail and even hurricane-force winds could hobble parts of<a class="excerpt-read-more" href=" More ...

In north Florida, sweltering temperatures usually come in June. But this year's summer heat is starting early, with a heat wave.

As Florida's hot season approaches, weather experts are advising people to stay safe and alert when they're outside, especially at theme parks.