Portugal is expected to see highs of up to 109 degrees Fahrenheit. Parts of Spain, France, Italy and Greece are also bracing ...

A family of 11, including six children, was rescued off the Holbert Trail on South Mountain in Phoenix during a hot summer ...

A new data dashboard compares neighborhoods in California and shows why heatwaves can feel more intense in some places.

Extreme heat is making air pollution worse, scientists say. And President Trump’s regulatory rollbacks could drive air ...

As triple-digit temperatures hit the East Coast, individuals with a mental illness taking psychiatric medications could be at ...

Nearly 160 million people are under heat alerts from eastern Texas to Maine, as temperatures are forecast to be as much as 20 ...

According to the Pima County Sheriff's Department, eight hikers were at Bear Mountain and had to be rescued due to ...

Fire crews have been called to conduct multiple mountain rescues amid extreme heat in the Valley on Sunday, including one ...

"The road exploded and rose over 18 inches, sending a car airborne," said Albert Blackwell, who captured the moment on video.

The WRC was braced for perhaps its most physically demanding test of the season thanks to a punishing blend the WRC’s ...

The organization announced it will open 10 stations in the Valley where anyone in need can go for indoor cooling and ...

There will be a slight chance of showers and thunderstorms late Tuesday and Wednesday, but most of the activity is expected to remain in the higher elevations. A slightly better chance (about 20%) of ...