Daytime temperatures in the 110s and nighttimes at or above 90 degrees stress bodies and may raise Arizona's death count.

Hottest US city, buffeted by extreme temperatures, sees 579 heat-related in 2023, with large proportion among unhoused people Heat deaths surged by 50% in Phoenix in 2023 – the deadliest year on ...

After two years of record breaking heat that brought a surge of deaths and health emergencies, several states have enacted or ...

Phoenix-area temperatures were expected to reach near record highs on Tuesday and Wednesday. Here's how warm it could get ...

Phoenix will launch a new overnight heat relief program next summer and a slew of homelessness services programs using nearly $20 million in federal funds the city was at risk of losing.