Thursday was the peak of this brutal heat wave, with heat index values topping 110 degrees in several Connecticut towns.

It’s during times like this that you often hear people talk about the “heat index” and “how hot does it feel?” That’s because temperature and heat index are two separate things.

Temperatures are skyrocketing for the third straight day across the Eastern US, but there’s at least three different ways to say how hot it really is.

What is the weather for Independence Day? National Weather Service says it'll be hot, humid, with rain showers possible.

As temperatures climb and humidity intensifies across the Kansas City metro, KC2026 leaders are urging fans to take ...

Did you know that our crops are elevating the humidity? Here's how corn sweat impacts Ohio's weather, and how you can stay ...

As a dangerous heat wave drives temperatures and humidity higher across New York City, utility provider Con Edison and New ...

The metric of how hot the air actually feels has roots in a 1979 journal paper called “The Assessment of Sultriness.” By Andy Newman In recent days, you may have seen or heard many mentions of a ...

Communities in the central and eastern United States are feeling the effects of a potentially-deadly, record-breaking heat wave Wednesday. The extreme heat will be all the more dangerous as it mixes ...

A heat dome was strengthening above the Ohio Valley early Wednesday, with more than 150 million Americans covered by heat ...

Sometimes you can stay hydrated and still run; other times you should just pack it in.

Heat can be dangerous, but health experts say there are ways to manage the threat. Scorching temperatures, especially ...