Multiple states are under extreme heat warnings, advisories or watches on July 23, according to the National Weather Service.

The heat map below, based on data compiled by the U.S. NOAA National Geophysical Data Center, includes all earthquakes measuring 6.0 or greater on the Richter scale over the past 40 years.

Environment Canada is warning of a 'multi-day heat event' that will bring temperatures in the low-to-mid 30s to ...

A heat dome building on the western side of the United States may break records this week, surging temperatures to 119 degrees in California.