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Updated On: 6/28/2024 - 8:55 AM
Click on each day to view forecast.

Friday Forecast:

Alert: Ozone High Pollution Advisory in effect for Friday |  Health Impacts >

Ozone

101 AQI
Max 8-hr Avg: 71 ppb

PM10

42 AQI
24-hr Avg: 45 µg/m3

PM2.5

42 AQI
24-hr Avg: 7.5 µg/m3

Saturday Forecast:

Alert: Ozone High Pollution Advisory in effect for Saturday |  Health Impacts >

Ozone

101 AQI
Max 8-hr Avg: 71 ppb

PM10

40 AQI
24-hr Avg: 43 µg/m3

PM2.5

42 AQI
24-hr Avg: 7.6 µg/m3

Sunday Forecast:

Alert: Ozone High Pollution Advisory in effect for Sunday |  Health Impacts >

Ozone

104 AQI
Max 8-hr Avg: 72 ppb

PM10

48 AQI
24-hr Avg: 52 µg/m3

PM2.5

41 AQI
24-hr Avg: 7.4 µg/m3

Monday Forecast:


Ozone

93 AQI
Max 8-hr Avg: 68 ppb

PM10

46 AQI
24-hr Avg: 50 µg/m3

PM2.5

33 AQI
24-hr Avg: 6.0 µg/m3

Tuesday Forecast:


Ozone

97 AQI
Max 8-hr Avg: 69 ppb

PM10

48 AQI
24-hr Avg: 52 µg/m3

PM2.5

36 AQI
24-hr Avg: 6.5 µg/m3

Air Quality By Pollutant:

Pollutant
Friday
6/28/2024
Saturday
6/29/2024
Sunday
6/30/2024
Monday
7/1/2024
Tuesday
7/2/2024
O3
101
101
104
93
97
PM10
42
40
48
46
48
PM2.5
42
42
41
33
36
Pollutant
FRI
SAT
SUN
MON
TUE
O3
101
101
104
93
97
PM10
42
40
48
46
48
PM2.5
42
42
41
33
36
O3 = Ozone, PM10 = Particles ≤ 10 microns, PM2.5 = Particles ≤ 2.5 microns


Forecast Discussion:

Yesterday, winds were stronger and more persistent that expected, which did keep ozone levels quite a bit lower than was forecast. As for particulates, a new wildfire did start yesterday east of Cave Creek called the Boulder View Fire. Fortunately, the westerly winds pushed the smoke off to the east and did not impact the Phoenix area. Both PM10 and PM2.5 levels stayed in the Good AQI range yesterday.

Going forward, we still expect ozone levels to be higher the next few days. We expect lighter winds, which should allow ozone levels to build up more here in the Valley. As a result, we are issuing Ozone High Pollution Advisories for today through Sunday. However, beginning later on Sunday and into early next week, we are forecasting more potential for cloud cover and thunderstorms in the area. Because of this, we are forecasting ozone levels to drop a little into the Moderate AQI category.

Switching to PM10, we don't expect any major issues. However, with increased storm activity around the area beginning Sunday, there is potential for brief dust from thunderstorm outflows. However, because the area has received rain recently, we don't expect significant dust. PM10 is forecast to stay in the Good AQI range through the forecast period.

And lastly PM2.5, which is not expected to be a major concern either. Smoke from the Boulder View Fire will continue to move off to the east the next few days, if the fire even lasts that long. The fire is brush and grass, and as a result, the majority of the fuel for the fire will likely get consumed fairly quickly. Ultimately, we are forecasting PM2.5 levels here in Phoenix to stay in the Good AQI range through the forecast period.

- R. Nicoll
ADEQ Meteorologist


What Flag Should I Fly?

Saturday: Orange
Sunday: 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

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 >