Phoenix, Arizona – Relentless heat will bake Phoenix and surrounding cities Sunday through Tuesday, with 115°F highs possible and heat illness likely.
According to the National Weather Service, an Extreme Heat Warning remains in effect until 8 p.m. Tuesday, July 1, across Maricopa County, including Phoenix, Glendale, Tempe, and Mesa. Afternoon temperatures will range from 110°F to 115°F. Heat exhaustion and heat stroke can develop quickly. Residents are urged to avoid outdoor activity between 10 a.m. and 6 p.m.
The Arizona Department of Environmental Quality also issued an Ozone High Pollution Advisory through Sunday, increasing health risks for children, seniors, and people with respiratory issues. Avoid vigorous activity outdoors and carpool if possible.
Cities like Chandler, Goodyear, and Paradise Valley will see highs above 113°F Sunday and 115°F Monday, with minimal overnight cooling. Hydrate regularly, wear loose clothing, and seek air conditioning or visit cooling centers (dial 2-1-1 for Maricopa County locations).
Sunday’s heat will feel more intense due to stagnant air and light winds. Monday brings even hotter conditions before slightly easing Wednesday. Travelers along I-10 and Loop 101 should prepare for overheated vehicles and increased breakdown risk.
Looking Ahead: 6-Day Forecast (Phoenix Metro)
- Sunday: Sunny and hot, high 113°F, low 86°F
- Monday: Clear and dangerously hot, high 115°F, low 89°F
- Tuesday: Sunny, high 113°F, low 87°F
- Wednesday (July 2): Mostly sunny, high 107°F, low 83°F
- Thursday: 30% chance of storms, high 101°F, low 83°F
- Friday (4th of July): 20% chance of storms, high 101°F, partly sunny
Fourth of July Preview: Monsoon moisture may bring scattered storms by Thursday and Friday. Expect cooler highs near 101°F with potential for fireworks delays.
Stay alert — heat warnings continue through Tuesday night.
