A heat dome is affecting much of the central and eastern U.S., creating high levels of heat and humidity. What to know in Tennessee.

More than half the country, including Illinois, is currently in a heat dome. Here's what that means and how to stay safe during excessive heat.

Remote-sensing data and artificial intelligence are mapping the most heat-vulnerable buildings in cities like Delhi, in an effort to target relief from extreme temperatures at a granular level.

Much of Ontario and southwestern Quebec will continue to bake in high temperatures Monday and Tuesday as a heat dome lingers over the region.

A dangerous heat wave is expected for the Philly area this week evening, with temperatures reaching 100 degrees. Here's ...