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

With a heat wave causing excessive heat warnings in Delaware, you'll hear a lot about the heat index this week. What to know ...

Also, keep your pets cool and indoors. If your pet is exposed to extreme heat, the AKC suggests getting your dog to a shady ...

You need to start learning what the wet-bulb temperature is, as climate change makes the deadly combination of heat and ...

The National Weather Service issued an extreme heat warning for a second day as the heat index surpasses 100. See how hot it ...

You might've heard the phrase "it's not the heat, it's the humidity." However, when it comes to calculating the heat index, you need both values. As temperatures begin to climb towards the lower 90s ...

You might've heard the phrase "it's not the heat, it's the humidity." However, when it comes to calculating the heat index, you need both values. As temperatures begin to climb towards the lower 90s ...

A public health researcher explains the signs someone is developing heat exhaustion or heat stroke, and what to do.

As we approach summer, high heat becomes a concern as heat exhaustion and heat stroke are possible. Plus, heat related deaths ...

Basically, when the body sweats, the perspiration evaporates, cooling the body. When the humidity is high, the sweat doesn't ...