PHOENIX — Arizona’s dangerous heat wave continues this week, with daily highs in the Valley ranging from 110 to 115 degrees through Friday.
Monday remains an ABC15 Weather Action Day as we continue urging everyone to take extra precautions to stay safe in the extreme heat.
Stay hydrated, avoid outdoor activity during the hottest parts of the day, typically between 11 a.m. and 6 p.m., and wear lightweight, light-colored clothing to help keep your body temperature down.
If you must be outdoors, take frequent breaks in the shade or indoors, and remember to apply and reapply sunscreen throughout the day.
Never leave children or pets in vehicles, and make sure your pets have a cool and safe place to rest indoors during the daytime hours.
Extreme Heat Warnings remain in effect across central and southern Arizona through this evening.
An additional Extreme Heat Warning continues through Friday for the Grand Canyon below 4,000 feet, including Phantom Ranch and Havasupai Gardens.
A weak weather system moving through on Tuesday will bring a slight dip in temperatures along with gusty winds, especially across northern and eastern Arizona. Those winds will elevate fire danger, prompting Red Flag Warnings and Fire Weather Watches in parts of the state.
By Wednesday, temperatures are expected to rise again to 110 degrees or higher in many areas. The hottest stretch of the week looks to be from Wednesday through Friday, with the Valley potentially reaching 115 degrees on Thursday.
Air quality is getting worse, too.
An Ozone High Pollution Watch is in effect in the Valley on Wednesday, which may be upgraded to an advisory too 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.
An Extreme Heat Watch is in effect for southern Arizona on Thursday and Friday due to the potential for more dangerous heat.
Thursday will also be an ABC15 Weather Action Day as temperatures climb to some of the highest levels so far this year.
Several days this week may come close to tying or breaking daily temperature records. Even higher elevation areas will feel unusually warm, limiting the typical relief found in the mountains.
Looking ahead to the weekend, a stronger weather system moving in from the Pacific Northwest may finally bring some relief.
Temperatures are expected to drop a few degrees by Sunday and into early next week, possibly returning to near or slightly below normal for this time of year.
Monsoon 2025 officially began Sunday, but dry southwest winds remain dominant, keeping moisture out of Arizona for now. As a result, the forecast stays dry until the pattern shifts.
2025 Sky Harbor Official Rainfall to date: 1.47" (-1.46" from average)
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2024 Sky Harbor Official Rainfall to date: 4.54" (-2.68" from average)
Monsoon 2024 Sky Harbor Official Rainfall: 0.74" (-1.69" from average)
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Daily rainfall reports from all across the Valley can be found here.
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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
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