Millions of Americans across 20 states had extreme heat warnings and heat advisories in place as of early Tuesday, with the ...

The Arizona Department of Health Services (ADHS) reminds Arizonans to stay safe as extreme heat warnings impact 10 Arizona ...

Hundreds of thousands of people have been advised to stay out of the sun this week due to "dangerously hot conditions" ...

For Monday, a high of 112°F is expected for the Valley, rising to 115°F by Wednesday. An Extreme Heat Watch will take effect on Tuesday, July 8, and it is expected to last into Thursday, July 10.

The reports tell state and local governments and everyday people what to expect in a warming world and how to prepare for it.

The Phoenix monsoon season officially started on June 15 but the first push of the monsoon kicked off on Wednesday. What's ...

A ground stop was underway at Sky Harbor, but it is now just a ground delay with the average delay lasting almost an hour.

Clouds build up in the early afternoon and gusty winds push in every direction. The skies darken and then comes the rain — ...

The Hurricane Hunter planes that fly into storms can also be used to generate three-dimensional storm images, but the ...

Legally mandated national climate assessments disappeared this week from the federal websites built to display them, making ...

Thousands of Americans have been urged not to drive on Wednesday amid concerns over high air pollution levels. Ozone Action ...