A major heat wave will persist through the end of the week in some areas of the country. Here's what to do while the temperatures remain high.

The United States has been facing a widespread heat wave this week, which saw multiple temperature records surpassed. The ...

This summer is already dangerously hot, and older adults face greater health risks in the heat. Experts explain why and share ...

When does heat become dangerous? The answer depends on more than the temperature. The most detailed measurement is called the wet bulb globe temperature, which includes temperatur ...

Buckled roads. Broken bridges. Delayed trains. Strained power grids that led to dangerous outages. Cases of heat illness and ...