Skip to main content
Click on each day to view forecast.

Tuesday Forecast:

HPA
Alert: PM10 High Pollution Advisory in effect for Tuesday |  Health Impacts >
Notice
Notice: Blowing dust possible in the evening.

Ozone

84 AQI
Max 8-hr Avg: 65 ppb

PM10

122 AQI
24-hr Avg: 198 µg/m3

PM2.5

81 AQI
24-hr Avg: 25.0 µg/m3

Wednesday Forecast:


Ozone

80 AQI
Max 8-hr Avg: 64 ppb

PM10

67 AQI
24-hr Avg: 87 µg/m3

PM2.5

62 AQI
24-hr Avg: 15.0 µg/m3

Thursday Forecast:


Ozone

74 AQI
Max 8-hr Avg: 62 ppb

PM10

60 AQI
24-hr Avg: 73 µg/m3

PM2.5

53 AQI
24-hr Avg: 10.3 µg/m3

Friday Forecast:


Ozone

61 AQI
Max 8-hr Avg: 58 ppb

PM10

52 AQI
24-hr Avg: 57 µg/m3

PM2.5

51 AQI
24-hr Avg: 9.1 µg/m3

Saturday Forecast:


Ozone

58 AQI
Max 8-hr Avg: 57 ppb

PM10

51 AQI
24-hr Avg: 55 µg/m3

PM2.5

48 AQI
24-hr Avg: 8.6 µg/m3

Air Quality By Pollutant:

Pollutant
Tuesday
8/4/2026
Wednesday
8/5/2026
Thursday
8/6/2026
Friday
8/7/2026
Saturday
8/8/2026
O3
84
80
74
61
58
PM10
122
67
60
52
51
PM2.5
81
62
53
51
48
Pollutant
TUE
WED
THU
FRI
SAT
O3
84
80
74
61
58
PM10
122
67
60
52
51
PM2.5
81
62
53
51
48
O3 = Ozone, PM10 = Particles ≤ 10 microns, PM2.5 = Particles ≤ 2.5 microns


Forecast Discussion:

Lingering lofted dust from last night's big dust storm will continue to slowly improve this morning. But, strong storms over southeast Arizona are expected once again later today. In turn, outflow winds from the distant storms are expected to affect the Greater Phoenix area this evening with blowing dust. Though the dust concentrations are not anticipated to get as high as they did last night, it is anticipated that they will be high enough to merit a High Pollution Advisory for today which also accounts for the above normal lofted dust levels we already have.

To varying degrees, daily storm activity is expected to continue over southeast Arizona through Saturday. In addition, storm activity is anticipated to expand westward over the Mogollon Rim and into Yavapai County as the week progresses. Thus, the potential for outflows affecting the Phoenix area will continue. But, it is too early to know if the outflows Wednesday through Saturday will be primarily from the north or from the south/southeast; the latter being more conducive to dense blowing dust. The combination of typical morning activities, such as construction, along with varying potential for blowing dust, will keep the forecasted daily average PM10 in the Moderate range but with a general downtrend. The same pattern holds true for PM2.5.

Peak 8 hour average Ozone each day is anticipated to be in the Moderate range primarily due to the time of year.

- A. Jamison
ADEQ Meteorologist


What Flag Should I Fly?

Tuesday: Orange
Wednesday: Yellow
Air Quality chart showing the air quality to be Yellow for Moderate for this specific time or day. Moderate air quality may be a health concern for those who are unusually sensitive to air pollution.

Particulate Matter and Your Health - PM10 (Dust) and PM2.5 (Smoke)

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 particulate matter 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. The size of particles is directly linked to their potential for causing health problems. Small particles of concern include "fine particles" (such as those found in smoke and haze), which are 2.5 microns or less in size; and "coarse particles" (such as those found in wind-blown dust), which have diameters between 2.5 and 10 microns. These small particles, some much smaller in diameter than a human hair, pose the greatest problems because they can get deep into your lungs, and some may even get into your bloodstream | View ADEQ Particulate Matter Fact Sheet >

  • Use gas or electric instead of burning wood
  • Limit the lighting of fireworks
  • Ride transit, carpool or telework
  • Eliminate all unnecessary driving and/or combine trips
  • Avoid dirt roads
  • Avoid the use of leaf blowers
  • If burning wood for heat or food preparation, use dry wood (burning wet wood releases more particulate matter)