Arizona weather forecast: 80-degree highs possible this week in Phoenix

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Updated  December 10, 2025 4:08pm MST
FOX 10 Phoenix
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Evening Weather Forecast - 12/10/25

The Brief

    • Sunny and dry conditions are expected across Arizona for the foreseeable future, with unseasonably warm temperatures continuing throughout the week.
    • High temperatures in the Valley could hit 80 degrees on Thursday and Friday, running 10 to 14 degrees above normal.
    • Record daily-high temperatures may be tied or broken in the Valley, despite the region approaching its typically coolest time of year.

PHOENIX - It was another sunny and unseasonably warm day across Arizona.

Today:

Temperatures started in the upper 40s in the morning, before climbing into the mid-70s during the afternoon. We are still needing to wear a range of layers throughout the day! This will continue through the weekend.

Tonight and Tomorrow:

The Valley will fall to around 50 degrees tonight, before warming to around 80 degrees Thursday afternoon.

Looking Ahead:

The weather is staying dry, sunny and warmer than normal through Friday. The weekend will stay warm as well, but there may be more clouds floating overhead, especially Sunday. The 70s will continue through the end of 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.

Road Conditions

  • Call 511 anywhere in Arizona or 1-888-411-ROAD (7623)
  • az511.com

The Source: Information for this story was provided by the FOX 10 Weather Experts.

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