Exercising outside in high temps can be a health hazard. Here's how to read your local index, according to a doctor, so you can stay safe.

"It's not the heat, it's the humidity." Actually, it's both, and that's where the National Weather Service's heat index comes in. Also known as the apparent temperature, the heat index is a number ...

More than 11 million people across southern Georgia and most of Florida were under a rare “extreme” heat warning. Some Moderate High By Nazaneen Ghaffar Nazaneen Ghaffar is a reporter on The Times’s ...

Temperatures this week are some of the hottest we have seen the entire year now as we get to the end of July. This is a perfect opportunity to explain what the Heat Index is and how it is all ...