Crowds are packing local waterparks like Golfland Sunsplash in Mesa, which are busier with the warm temperatures, as locals and visitors look to beat the heat.

MARTINEZ LAKE, Arizona — A desert community near Martinez Lake, Arizona, has set a new record for the hottest temperature ever recorded in the U.S. during the month of March, as a powerful heat wave ...

After smashing March heat records in 14 states and the U.S. as a whole, the gigantic heat dome that’s baked the Southwest is ...

By Monday afternoon, skies will be partly to mostly cloudy with highs near 90°. Temperatures will climb back into the mid to ...

The scorching heat wave, which began last week, has brought dangerous temperatures to parts of California, Arizona, and other ...

The new heat record is an alarming signal of how hot the planet is getting and how fast it’s happening.

Arizona recorded its hottest winter on record since December, with a stretch of triple-digit temperatures hitting March. Here's what to expect next.

Several organizations hosted an extreme heat town hall Tuesday night just weeks after historic heat tore through Southern ...

Unseasonably hot temperatures continue to grip southwest Arizona, with near-record heat expected to persist through the rest ...

Temperatures fell a few degrees across Arizona on Sunday. However, record warm temperatures were still reached for most of the state. Clouds rolled in overhead, thanks to weakening high pressure, and ...

Phoenix reached 100°F on Sunday, marking a high-temperature record for the date and continuing a historic stretch of early-season triple digits. Extreme Heat Warnings remain in effect until 8 p.m.