Extreme heat is baking parts of Arizona, with Phoenix breaking its warmest August day on record with a high of 118 degrees.

Phoenix, AZ braces for intense heat with temperatures hitting 110 degrees and minimal chances of cooling or precipitation.

A strong ridge of high pressure has been dominated the Southwestern US to end the week, leading to many new high temperature ...

A Scottsdale nonprofit is working to educate and protect hikers as extreme heat drives up rescue calls on popular Arizona trails.

Amid a scorching heat wave, Phoenix firefighters are responding to heat-related emergency calls, especially among people ...

Mesa Market Place is like stepping into a wonderland of incredible deals. Covered pavilions protect shoppers from the blazing Arizona heat. Vendors line every walkway with treasures that seem almost ...

Embry-Riddle Aeronautical University Assistant Professor Cary Grant explains that extreme heat leads to reduced air density, meaning takeoff will be longer.

YOU’D be forgiven for dismissing a desert as uninviting. Dry. Desolate. Dangerous. But after spending 10 days in Arizona, ...

The Phoenix Fire Department has handled more than 130 heat-related calls since May 1, using cold water immersion treatments ...

The Maricopa County Office of the Medical Examiner has released its report into the April death of a disabled group home patient in Phoenix.

Energy usage records have been set numerous times this summer, a trend that reflects the state's rapidly increasing energy needs.