Phoenix Forecast

Image of the skyline of downtown phoenix

Air Quality Hourly Forecast | Phoenix

Click on each day to view forecast.

Monday Forecast:


Ozone

49 AQI
Max 8-hr Avg: 53 ppb

PM10

55 AQI
24-hr Avg: 64 µg/m3

PM2.5

51 AQI
24-hr Avg: 12.2 µg/m3

Tuesday Forecast:


Ozone

50 AQI
Max 8-hr Avg: 54 ppb

PM10

57 AQI
24-hr Avg: 67 µg/m3

PM2.5

50 AQI
24-hr Avg: 12.0 µg/m3

Wednesday Forecast:


Ozone

51 AQI
Max 8-hr Avg: 55 ppb

PM10

63 AQI
24-hr Avg: 80 µg/m3

PM2.5

54 AQI
24-hr Avg: 13.3 µg/m3

Thursday Forecast:


Ozone

50 AQI
Max 8-hr Avg: 54 ppb

PM10

56 AQI
24-hr Avg: 66 µg/m3

PM2.5

45 AQI
24-hr Avg: 10.8 µg/m3

Friday Forecast:


Ozone

49 AQI
Max 8-hr Avg: 53 ppb

PM10

55 AQI
24-hr Avg: 64 µg/m3

PM2.5

46 AQI
24-hr Avg: 11.1 µg/m3

Air Quality By Pollutant:

Pollutant
Monday
10/21/2019
Tuesday
10/22/2019
Wednesday
10/23/2019
Thursday
10/24/2019
Friday
10/25/2019
O3
49
50
51
50
49
PM10
55
57
63
56
55
PM2.5
51
50
54
45
46
Pollutant
MON
TUE
WED
THU
FRI
O3
49
50
51
50
49
PM10
55
57
63
56
55
PM2.5
51
50
54
45
46
O3 = Ozone, PM10 = Particles ≤ 10 microns, PM2.5 = Particles ≤ 2.5 microns

Forecast Discussion:

We are stuck in-between a large trough to the east and a large ridge to the west. This pattern shouldn't hurt air quality, but it likely won't significantly help air quality either. Ozone is forecast to hover around the upper Good range and lower Moderate range, with Wednesday forecast to be the highest due to calmer conditions. Morning and evening PM10 spikes will likely continue to be enough for PM10 to reach Moderate AQI levels. Again, Wednesday will likely be the highest day due to the calmer conditions. PM2.5 will follow a similar trend as PM10, but to a lesser extent. The best air quality is forecast to be at the end of the week due to some breezy easterly winds as the ridge builds over the area.

- R. Nicoll
ADEQ Meteorologist


What Flag Should I Fly?

Tuesday: Yellow
Wednesday: Yellow

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