Wednesday Forecast:
Ozone
Max 8-hr Avg: 68 ppb
PM10
24-hr Avg: 31 µg/m3
PM2.5
24-hr Avg: 5.2 µg/m3
Thursday Forecast:
Ozone
Max 8-hr Avg: 71 ppb
PM10
24-hr Avg: 38 µg/m3
PM2.5
24-hr Avg: 6.0 µg/m3
Friday Forecast:
Ozone
Max 8-hr Avg: 72 ppb
PM10
24-hr Avg: 43 µg/m3
PM2.5
24-hr Avg: 6.2 µg/m3
Saturday Forecast:
Ozone
Max 8-hr Avg: 69 ppb
PM10
24-hr Avg: 45 µg/m3
PM2.5
24-hr Avg: 7.1 µg/m3
Sunday Forecast:
Ozone
Max 8-hr Avg: 66 ppb
PM10
24-hr Avg: 43 µg/m3
PM2.5
24-hr Avg: 6.9 µg/m3
Air Quality By Pollutant:
7/22/2026
7/23/2026
7/24/2026
7/25/2026
7/26/2026
Forecast Discussion:
Air quality-wise, the main pollutant of interest this week will be ozone. A sunnier and more stagnant weather pattern will be favorable for the formation and build-up of ozone in the Valley. There is currently some uncertainty in how high ozone will reach, but ozone levels reaching above the health standard will be possible.
Therefore, an Ozone High Pollution Advisory has been issued for Thursday, and an Ozone High Pollution Watch is still in place for Friday.
As for PM10 (dust) and PM2.5 (smoke), both of these air pollutants will remain mostly locally driven for now. But, blowing dust may be possible again later Saturday, depending on storm activity around the Valley.
Check back again tomorrow morning of the next update.
- M. Graves
ADEQ Meteorologist
What Flag Should I Fly?
Thursday: Orange
|
Friday: Orange
|
Ozone and Your Health
People most vulnerable to the impacts of air pollution include children, older adults, adults exercising outdoors, people with heart or lung disease, and those suffering from asthma and bronchitis. Exposure to ozone can increase the number and severity of asthma attacks, cause or aggravate bronchitis or other lung disease, and reduce the body's ability to fight infection. Symptoms may include itchy eyes, nose and throat, wheezing, coughing, shortness of breath, chest pain, and upper respiratory issues | View Ozone Fact Sheet >
Please help reduce ozone by doing one or more of the following:
- Drive as little as possible, carpool, use public transit or telecommute
- Re-fuel your vehicle in the evening
- Avoid waiting in long drive-thru lines, if possible
- Use low-VOC (Volatile Organic Compounds) or water-based paints, stains, finishes and paint strippers - delay big painting projects
- Make sure containers of household cleaners, garage and yard chemicals, and other solvents are sealed properly to prevent vapors from evaporating into the air
Ozone and Your Health
People most vulnerable to the impacts of air pollution include children, older adults, adults exercising outdoors, people with heart or lung disease, and those suffering from asthma and bronchitis. Exposure to ozone can increase the number and severity of asthma attacks, cause or aggravate bronchitis or other lung disease, and reduce the body's ability to fight infection. Symptoms may include itchy eyes, nose and throat, wheezing, coughing, shortness of breath, chest pain, and upper respiratory issues | View Ozone Fact Sheet >
Please help reduce ozone by doing one or more of the following:
- Drive as little as possible, carpool, use public transit or telecommute
- Re-fuel your vehicle in the evening
- Avoid waiting in long drive-thru lines, if possible
- Use low-VOC (Volatile Organic Compounds) or water-based paints, stains, finishes and paint strippers - delay big painting projects
- Make sure containers of household cleaners, garage and yard chemicals, and other solvents are sealed properly to prevent vapors from evaporating into the air
Report an Air Quality Complaint
Ph: 602-771-2286
or online >