MOST ACCURATE FORECAST: Extreme Heat and Poor Air Quality Return to Arizona

PHOENIX — Prepare for a hot and dry Fourth of July weekend as high pressure strengthens across Arizona, driving temperatures and ozone levels higher.

As this ridge of high pressure rebuilds, a warming trend kicks in, with Valley highs climbing back to near-normal by Saturday. By Sunday, expect temperatures in the lower deserts to soar above 110°F.

Extreme Heat Ahead

Forecast models suggest another round of excessive heat next week, with near-record temperatures possible by midweek. Highs may spike up to 115°F by Wednesday, especially across central and southwestern Arizona, where Major to Extreme Heat Risk levels are expected.

Ozone High Pollution Advisory – Monday

Air quality is taking a hit too. An Ozone High Pollution Advisory is in effect for the Phoenix metro area on Monday, thanks to sunshine and light winds. Ozone levels will peak in the afternoon, making it especially hazardous to sensitive groups like:

Children
Older adults
Those with asthma, COPD, or other respiratory conditions

Limit outdoor activity between 10 a.m. and 6 p.m. during the advisory.

How to Help Reduce Ozone Pollution

Carpool or use public transportation
Avoid idling your vehicle
Refuel your car after sunset

Heat Safety Reminders

Stay indoors during peak heat (10 a.m. – 6 p.m.)
Drink plenty of water and electrolytes
Keep pets indoors and check on vulnerable neighbors
Never leave kids or pets in a parked car

Get ready for a blazing start to July—plan your outdoor activities early in the day and take the heat risk seriously.

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