Heat

Arizona Public Service’s parent company reported first-quarter sales growth that was well above average for the utility. The heat wave in March and February was a driving factor, but so was industry growth.

Federal agents are investigating the deaths of six people thought to be immigrants found inside a shipping container at a Union Pacific rail yard near the border with Mexico in Laredo, Texas, on Sunday as a "potential human smuggling event."

Temperatures in Phoenix will be about 14 degrees hotter than normal Monday and Tuesday. Climate Central ranks the weather event at the highest end of its Climate Shift Index scale.

An extreme heat warning is in effect now through Tuesday night as temperatures in the Valley reach over 100 degrees. The National Weather Service says heat-related illnesses increase significantly during this period.

As temperatures continue to rise in Arizona, electric vehicles and hybrid efficiency could take a hit, according to a new study from AAA.

As temperatures climb, Arizona State Parks and Trails is reminding hikers to stay hydrated, hike early in the morning, wear lightweight clothing and bring a fully charged phone with them.

Are we in for another record scorching summer? There just might be hope on the horizon in the form of a “super El Niño” heading our way.

So far in 2026, officials are investigating 42 possible heat-related deaths, according to data released Tuesday by the Maricopa County Department of Public Health. The majority of those cases are from March, when the Valley had a record-shattering nine days in triple-digit heat.

Keeping a home cool through an Arizona summer can come with a big price tag. But there are resources available in the state for utility assistance and air conditioning repairs. Here’s where to start.

Keys to Change needs more than a half-million bottles of water for the summer. The organization will host water donation events monthly through September. The first event is Saturday, May 2.