Phoenix Forecast

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Air Quality Hourly Forecast | Phoenix

Click on each day to view forecast.

Thursday Forecast:


Ozone

44 AQI
Max 8-hr Avg: 47 ppb

PM10

56 AQI
24-hr Avg: 65 µg/m3

PM2.5

42 AQI
24-hr Avg: 10.1 µg/m3

Friday Forecast:


Ozone

45 AQI
Max 8-hr Avg: 49 ppb

PM10

61 AQI
24-hr Avg: 75 µg/m3

PM2.5

54 AQI
24-hr Avg: 13.7 µg/m3

Saturday Forecast:


Ozone

44 AQI
Max 8-hr Avg: 48 ppb

PM10

42 AQI
24-hr Avg: 45 µg/m3

PM2.5

52 AQI
24-hr Avg: 12.7 µg/m3

Sunday Forecast:


Ozone

42 AQI
Max 8-hr Avg: 45 ppb

PM10

44 AQI
24-hr Avg: 47 µg/m3

PM2.5

51 AQI
24-hr Avg: 12.1 µg/m3

Monday Forecast:


Ozone

43 AQI
Max 8-hr Avg: 46 ppb

PM10

55 AQI
24-hr Avg: 64 µg/m3

PM2.5

40 AQI
24-hr Avg: 9.6 µg/m3

Air Quality By Pollutant:

Pollutant
Thursday
2/25/2021
Friday
2/26/2021
Saturday
2/27/2021
Sunday
2/28/2021
Monday
3/1/2021
O3
44
45
44
42
43
PM10
56
61
42
44
55
PM2.5
42
54
52
51
40
Pollutant
THU
FRI
SAT
SUN
MON
O3
44
45
44
42
43
PM10
56
61
42
44
55
PM2.5
42
54
52
51
40
O3 = Ozone, PM10 = Particles ≤ 10 microns, PM2.5 = Particles ≤ 2.5 microns

Forecast Discussion:

This morning, a small low pressure wave is situated directly over Arizona. It's a dry wave, so you won't notice it by looking in the sky for clouds. Instead, it will make its presence known by light breezes this morning and early afternoon and cooler high temperatures (much closer to 70°F than 80°F). The good news is that the slight increase in winds is helping to limit PM10 (dust) and PM2.5 (smoke) accumulation in the industrial areas south/southwest of the Phoenix metro.

Looking ahead, for the most part, the weather pattern over the Southwest will remain relatively mild during this forecast period. Most days, winds will be light and skies sunny. The main exception will be Sunday, on which another low pressure wave is expected to move over the state. Similar to today, highs will moderate back down to around 70°F and winds will pick up. Winds may actually be a little stronger this time, so pockets of dust may be possible in desert areas.

PM10 and PM2.5 will have the potential to reach the Moderate Air Quality Index (AQI) category on a few days, especially when winds are light in the morning/overnight hours. But Moderate AQI levels are still expected to be confined to areas south/southwest of the Phoenix metro. Elsewhere around the Valley should continue to see these air pollutants in the Good AQI category.

Ozone is forecast to remain in the Good AQI category for now.

- M. Graves
ADEQ Meteorologist


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Thursday: Yellow
Friday: Yellow

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