Arizona weather forecast: Triple digits back this week in Phoenix

Evening Weather Forecast - 5/20/2025

We are expecting triple-digit temperatures in the coming days for the Valley.

PHOENIX - Buckle up! Arizona's weather is going to begin really heating up.

"After slightly below normal temperatures today, a steady warming trend will eventually push daytime highs to around 100° by Wednesday before peaking between 102-107° on Thursday and Friday. Widespread Moderate HeatRisk is expected for Wednesday-Friday," the National Weather Service in Phoenix said on May 18.

Looking Ahead:

On Tuesday, the high was 99°, but on Wednesday, triple-digit highs are expected. The 100-degree highs are expected to stick around until early next week.

You can always check the latest weather conditions by visiting the FOX 10 Phoenix weather page, or download the Free FOX 10 Weather app, which is available on Apple iOS and Android.

Scroll down this page for satellite and radar, day planner, records, current temperatures, 10-day forecast, forecast highs, and recent rainfall totals, plus live video feeds.