Phoenix Forecast

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Air Quality Hourly Forecast | Phoenix

Click on each day to view forecast.

Friday Forecast:


Ozone

38 AQI
Max 8-hr Avg: 41 ppb

PM10

42 AQI
24-hr Avg: 45 µg/m3

PM2.5

68 AQI
24-hr Avg: 20.0 µg/m3

Saturday Forecast:


Ozone

38 AQI
Max 8-hr Avg: 41 ppb

PM10

36 AQI
24-hr Avg: 39 µg/m3

PM2.5

64 AQI
24-hr Avg: 18.5 µg/m3

Sunday Forecast:


Ozone

38 AQI
Max 8-hr Avg: 41 ppb

PM10

31 AQI
24-hr Avg: 34 µg/m3

PM2.5

53 AQI
24-hr Avg: 13.2 µg/m3

Monday Forecast:


Ozone

34 AQI
Max 8-hr Avg: 37 ppb

PM10

41 AQI
24-hr Avg: 44 µg/m3

PM2.5

51 AQI
24-hr Avg: 12.1 µg/m3

Tuesday Forecast:


Ozone

33 AQI
Max 8-hr Avg: 36 ppb

PM10

33 AQI
24-hr Avg: 36 µg/m3

PM2.5

38 AQI
24-hr Avg: 9.2 µg/m3

Air Quality By Pollutant:

Pollutant
Friday
12/13/2019
Saturday
12/14/2019
Sunday
12/15/2019
Monday
12/16/2019
Tuesday
12/17/2019
O3
38
38
38
34
33
PM10
42
36
31
41
33
PM2.5
68
64
53
51
38
Pollutant
FRI
SAT
SUN
MON
TUE
O3
38
38
38
34
33
PM10
42
36
31
41
33
PM2.5
68
64
53
51
38
O3 = Ozone, PM10 = Particles ≤ 10 microns, PM2.5 = Particles ≤ 2.5 microns

Forecast Discussion:

This is a quiet period on the weather front for us, both in the city and really for the rest of Arizona, too. Air quality at this time has been reasonable considering the extended stretch of light dispersing winds. Dust generation, or the lack thereof, as captured by the PM10 monitoring network is the silver lining despite a horizon surrounding the metro area appearing less than pristine. It’s those fine particulate emissions that are the significant balance of the “brown cloud”. Moderate AQI values, using the official AQI 24-hour average calculation set by the EPA, have been common for some of our PM2.5 monitors this week, namely those located in drainages and near industry or major roadways. A minor weather system does traverses by on Sunday followed by breezy northeasterly winds Monday and Tuesday. Some improvement to air quality is expected.

That’s about it for the weather and air quality discussion this week. Have a fantastic weekend!


- J. Malloy
ADEQ Meteorologist


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Saturday: Yellow
Sunday: Yellow

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