Phoenix Forecast

Image of the skyline of downtown phoenix

Air Quality Hourly Forecast | Phoenix

Click on each day to view forecast.

Wednesday Forecast:


Ozone

40 AQI
Max 8-hr Avg: 43 ppb

PM10

57 AQI
24-hr Avg: 67 µg/m3

PM2.5

31 AQI
24-hr Avg: 7.4 µg/m3

Thursday Forecast:


Ozone

41 AQI
Max 8-hr Avg: 44 ppb

PM10

62 AQI
24-hr Avg: 78 µg/m3

PM2.5

53 AQI
24-hr Avg: 13.0 µg/m3

Friday Forecast:


Ozone

39 AQI
Max 8-hr Avg: 42 ppb

PM10

74 AQI
24-hr Avg: 102 µg/m3

PM2.5

59 AQI
24-hr Avg: 16.0 µg/m3

Saturday Forecast:


Ozone

44 AQI
Max 8-hr Avg: 47 ppb

PM10

59 AQI
24-hr Avg: 72 µg/m3

PM2.5

53 AQI
24-hr Avg: 13.2 µg/m3

Sunday Forecast:


Ozone

39 AQI
Max 8-hr Avg: 42 ppb

PM10

44 AQI
24-hr Avg: 48 µg/m3

PM2.5

40 AQI
24-hr Avg: 9.6 µg/m3

Air Quality By Pollutant:

Pollutant
Wednesday
11/13/2019
Thursday
11/14/2019
Friday
11/15/2019
Saturday
11/16/2019
Sunday
11/17/2019
O3
40
41
39
44
39
PM10
57
62
74
59
44
PM2.5
31
53
59
53
40
Pollutant
WED
THU
FRI
SAT
SUN
O3
40
41
39
44
39
PM10
57
62
74
59
44
PM2.5
31
53
59
53
40
O3 = Ozone, PM10 = Particles ≤ 10 microns, PM2.5 = Particles ≤ 2.5 microns

Forecast Discussion:

Air quality is in a much better shape this morning! Haze has now cleared the area. Breezier winds to finish the day on Tuesday have also effectively reset the airshed. Forecasted values have been adjusted downward accordingly. Although the air is cleaner at the moment, we are still falling into a less than ideal weather pattern for dispersion. Morning inversions and recirculation of pollutants remain likely the next few days, so an upward trend in PM10 and PM2.5 are being forecasted.

Relief arrives by the weekend. The storm track may buckle enough to allow energy to enter the region from the north. That translates to faster winds and flushing the airshed again. That will be an important weather system for us to interrupt the stretch of stagnation, so we will be watching that one closely. Unfortunately, the change in air masses would be dry. On a side note, the last time measurable rain fell at Phoenix Sky Harbor was September 26th (0.05 inches)! Hopefully, rain comes back into the picture heading deeper into the autumn season.


- J. Malloy
ADEQ Meteorologist


What Flag Should I Fly?

Thursday: Yellow
Friday: Yellow

What is the Flag Program and how can my school/organization join? | Learn More >