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Arizona weather forecast: Historic March heatwave continues on Thursday in Phoenix

By
Updated  March 26, 2026 5:52pm MST
Weather Forecast
FOX 10 Phoenix
Evening Weather Forecast - 3/26/26

Evening Weather Forecast - 3/26/26

We're getting ready to say goodbye, at least for now, to triple-digit temperatures.

The Brief

    • Phoenix saw a high of 99°F on Thursday.
    • Temperatures should return to the triple digits in Phoenix for Friday.
    • Relief is finally in sight beginning this weekend, as a pattern change is projected to bring cooler temperatures and the first significant rain chances to the state in weeks.

PHOENIX - Thursday was a record warm day for much of Arizona, but believe it or not, Phoenix did not see a record high!

Today:

The high was 99 degrees in Phoenix, falling a degree shy of the record daily high temperature. Flagstaff, Prescott, Sedona were among those that broke record highs. Skies were sunny and winds were a bit breezy, thanks to a passing disturbance in northern Arizona.

Tonight & Tomorrow:

Temperatures will fall into the upper 60s in the Valley tonight. Friday will be a slightly warmer day across Arizona. The Valley will warm to around 101 degrees. Skies will be sunny throughout the day, with increasing clouds during the evening.

This Weekend:

The weekend will be mostly cloudy over Arizona. Winds will be gusty across the mountains and desert Saturday morning. The Valley will see wind gusts up to 25 mph. Casa Grande, Gila Bend and Globe could see wind gusts of 25 to 35 mph. The winds should lighten Saturday afternoon.

Temperatures will fall across the state on Saturday, but it will still be a record warm day for many locations. The Valley will see highs in the upper 90s on Saturday and the low-mid 90s on Sunday.

There will be a low chance for showers on Sunday, mainly in mountain terrain. The chance for rain will be a bit higher on Monday.

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.

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Day Planner

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rainfall

The following heat safety information was provided by the Scottsdale Fire Department.

What are Heat Emergencies?

Heat Cramps: Profuse sweating, fatigue, extreme thirst, muscle cramps

Heat Exhaustion: Headache, dizziness, weakness, nausea/vomit, Cool/moist skin

Heat Stroke: Elevated temp. +103degrees, confusion/irrational behavior, dry/hot skin, rapid shallow breathing, rapid weak pulse (shock), seizures, unconscious

What to do

  • Get person into shade or cool location.
  • Cool person with cool, wet cloths (neck, groin, armpits, head) and fan body.
  • Sip cool water if person is alert.
  • For muscle cramps, massage muscles gently, but firmly until relaxed.
  • *If symptoms worsen, call 911.

What not to do

  • Do not give anything by mouth if person is vomiting, unable to swallow or unconscious.
  • Do not underestimate the seriousness of a heat emergency.
  • Prevention/Preparation for hike/exercise in heat.

Know your limitations

  • Hydrate (begins day prior to hike/exercise, hour before hike, during and after).
  • Wear proper clothing, lightweight and light color, protect head, proper shoes.
  • Always carry a cell phone and best to hike with company.
  • Always tell someone where you are hiking and when to plan to return.

Preventing heat exhaustion/heat stroke

The Arizona Department of Health Services stated the following precautions can be taken to prevent heat exhaustion or heat stroke:

  • Stay in air-conditioned buildings.
  • Find a cooling center/hydration station.
  • Limit outdoor activity during the hottest part of the day (mid-day).
  • Check on at-risk friends, family, and neighbors at least twice a day.
  • Drink water before, during, and after working or exercising outside.
  • Check the UV Index.
  • Check the heat risk map.

Road Conditions

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

The Source: Information for this article was gathered by the FOX 10 Weather Experts.

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