Sometimes the temperature outside feels warmer than it is, and there's a reason. Here's a breakdown of the heat index.

As temperatures rise across the U.S., here’s what you need to know about high humidity and how it can affect you.

A daily mismatch between temperature and humidity, observed in certain mountain and waterside regions, helps regulate atmospheric dryness. According to a new study published in Science Advances ...

Maps show where extreme humidity and 90- or 100-degree temperatures will affect about 255 million people across the United States.

According to the National Weather Service, the heat index is what the temperature feels like to the human body when relative humidity is combined with the ... heat stroke is likely. Here's a chart to ...

Dew point/relative humidity questions come up fairly often and this is a good one. Water vapor in the atmosphere is pretty important for deep-sky observing and photography.

It’s that time of year when the lexicon of the meteorologist regularly includes the phrase dew point. This concept is often confused with relative humidity which doesn’t tell us anything about ...

Basically, when the body sweats, the perspiration evaporates, cooling the body. When the humidity is high, the sweat doesn't evaporate as quickly and the body doesn't cool itself as well. Therefore, ...

This summer, temperatures are expected to be above-average with high levels of humidity. What is Louisiana's forecasted summer heat index?

What is the heat index? The heat index is what the temperature feels like to the human body when relative humidity is combined with the air temperature, according to the National Weather Service.