NWS Phoenix

News Headlines

Click a location below for detailed forecast.

Last Map Update: Tue, Aug 25, 2026 at 3:56:32 am MST

Watches, Warnings & Advisories

National Weather Service NWS Flagstaff, AZ

Zoom Out

National Weather Service Albuquerque, NM

National Weather Service NWS Tucson Arizona

Flash Flood Warning

Extreme Heat Warning

Heat Advisory

Air Quality Alert

Extreme Heat Warning

Weather Outlook

Heat Safety

Strong high pressure over the Southwest will lead to abnormally hot temperatures continuing into the weekend with temperatures 5-10°F above normal and near record territory at times. This will result in Major to Extreme HeatRisk across much of the lower deserts. The Extreme Heat Warning remains in effect through Saturday for much of the area.

Strong high pressure will settle directly over the region through midweek with temperatures heating up to well-above normal levels and approaching near record levels. The well-above normal temperatures will result in widespread Major to Extreme HeatRisk through at least Friday with Extreme Heat Warnings in effect through Saturday. Temperatures "cool-off" to near to slightly above normal on Sunday. Little to no thunderstorm chances expected throughout the workweek, but thunderstorm chances increase this weekend.

Heat can escalate quickly. Make sure to drink plenty of water and electrolytes and wear loose-fitting light-colored clothes. Stay indoors in air conditioning as much as possible, especially during the afternoons. If you have to be outside take frequent breaks in the shade. Never leave people or pets alone in a closed car. Don't underestimate the heat, it's the deadliest weather hazard.