In Arizona and California, multiple locations hit 112 degrees Fahrenheit last week.

Add Yahoo as a preferred source to see more of our stories on Google. SALT LAKE CITY (ABC4) — On a steamy July day last summer, Robert Wilson led more than 40 volunteers in a single-day project to ...

A heat map from the National Weather Service (NWS) shows that several parts of Florida are under the highest heat warning possible as meteorologists issued heat advisories on Friday. In Key West, the ...

PORTLAND, Ore. (KOIN) — There’s a new Portland metro project focused on keeping people safe from unhealthy and sometimes deadly heat. Officials now have a heat mapping tool to help them make decisions ...

The U.S. has contended with unrelenting temperatures this summer, and a map from NASA paints a dire picture of the scale of those persistent heat waves. The map, which consists of a snapshot of ...

The new Thermal Trace app allows users to explore thermal stress and related data from 1940 until five days before present, for anywhere in the world. The app, free for users, was developed by the ...

Kristian Foden-Vencil / OPB Health authorities in Oregon unveiled a heat map of the greater Portland area Wednesday, in the hope of avoiding deaths during the next excessive heat wave. On a sunny day ...

A heat wave was expected to bring record-high temperatures to the midwestern United States this week before spreading to the East Coast, forecasters said. At the same time, a bout of severe ...