FORECAST: Labor Day weekend forecast

PHOENIX — A warm Labor Day weekend is underway with a Major Heat risk in place for Sunday and Monday as temperatures near 110 degrees.

Phoenix will top out near 109 degrees by Sunday, putting us a few degrees above normal over Labor Day weekend.

Air quality will be an issue over the holiday weekend, too.

The Valley is under an Ozone High Pollution Advisory on Sunday and an Ozone High Pollution Watch on Monday and Tuesday, which could be upgraded to Advisories as we get closer.

Breathing in ozone pollution can lead to health impacts like chest pain, coughing, throat irritation, congestion, and difficulty breathing. Kids, older adults, and anyone with any kind of respiratory condition like asthma, bronchitis, or COPD can be especially susceptible to the impacts of ozone pollution. So, limit your time outside in the afternoon when ozone pollution is peaking.

Everyone can help prevent the pollution problem from getting worse by carpooling, taking public transportation, or working from home. Also, wait until after dark to fill up your gas-powered vehicles and avoid idling in long drive-thru lines.

Monsoon moisture will begin to move back in this week, and we are closely monitoring tropical moisture that could help aid this.

We could still see a few isolated showers and thunderstorms along the Mogollon Rim and across southeastern Arizona through Tuesday, with a 10 percent chance in the Valley Monday and Tuesday

By midweek, more monsoon moisture will flow in, bringing increasing chances for storms in the Valley for the second half of the week.

_________________________________________

2025 Sky Harbor Official Rainfall to date: 1.97″ (-2.78″ from average)

Monsoon 2025 Sky Harbor Official Rainfall: 0.50″ (-1.30″ from average)

__________________________________________

Daily rainfall reports from all across the Valley can be found here.
__________________________________________

PHOENIX IS GETTING DRIER – LOWER RAINFALL AVERAGES NOW

Average Monsoon Rainfall in Phoenix (1981-2010): 2.71″ of rain

NEW Average Monsoon Rainfall in Phoenix (1991-2020): 2.43″ of rain

Average Yearly Rainfall in Phoenix (1981-2010): 8:03″ of rain

NEW Average Yearly Rainfall in Phoenix (1991-2020): 7.22″ of rain
__________________________________________

Share your weather photos and videos with us anytime: [email protected].
______________________________________

See the full 7-Day forecast

Interactive Arizona Radar