An unprecedented October heat wave has enveloped the West, with record-setting temperatures from California to Colorado.

More than 50 new heat records were set on Wednesday, as an October heat wave continues to bake California and Arizona.

Tuesday was first October day in Phoenix with a temperature at or above 110 degrees since records began in 1896, the National ...

A historic October heatwave with temperatures so extreme they’d be considered hot during the peak of summer isn’t over yet.

Phoenix typically sees its last 100-degree day of the year in early October. But temperatures up to 110 degrees are forecast ...

On Wednesday, about 39 million people in the region were under heat alerts, according to the National Weather Service.

The triple-digit temperatures have put millions of Californians under heat advisories. The dangerously hot temperatures have ...

Those who repair air conditioning also wouldn’t mind if the temps dropped back to normal for this time of year.

Human-amplified climate change is making it more likely that extreme heat lasts longer into fall, as record-breaking ...

The Valley was experiencing record-breaking heat last week when two Phoenix Police Officers received an emergency priority one call for two animals in distress.