The number on the thermometer only tells half the story. Here’s what to know about heat index—and why some scientists are ...

Blistering heat and oppressive humidity are expected in the city of Chicago and parts of Illinois this week, with excessive heat warnings and heat advisories going into effect. Forecasters are warning ...

During the hot, humid summer months, meteorologists often discuss the heat index instead of the actual air temperature. But how is the heat index calculated, and why is it more important than the air ...

A question we receive quite often at NBC6 is why we report on the heat index as much as, or even more than, we report on the temperature. The heat index--also called the apparent temperature or ...

We've all heard the saying 'it's not the heat, it's the humidity'. But just how much can humidity impact how it feels outside?

OMAHA, Neb. (WOWT) - During a heat wave in the summer, temperature is often compared to the feels-like temperature, or heat index. Heat index factors in relative humidity, which impacts the body’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 ...

ROCHESTER, N.Y. (WROC) — Throughout the summer, much of the country has experienced at least a few days of extreme heat. In some cases, Americans were seeing large differences between real and ...

"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 ...