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

When extreme heat hits, you need to know the warning signs for heat exhaustion and heat stroke. Here's how to keep you and ...

The National Weather Service issued an extreme heat warning through Monday. Here's what to know about heat conditions this ...

There are a couple of changes effective this summer regarding the heat alerts the National Weather Service will issue ...

Several states are expecting extreme heat, with the heat index, or feels-like temperature, surging past 100 degrees.

An extreme heat warning was issued by the National Weather Service in Phoenix at 12:54 a.m. on Wednesday, June 18.