AQD | West Pinal Forecast
Updated On: 4/18/2025 - 6:54 AM
Click on each day to view forecast.
Friday Forecast:
Ozone
47 AQI
Max 8-hr Avg: 51 ppb
Max 8-hr Avg: 51 ppb
PM10
51 AQI
24-hr Avg: 55 µg/m3
24-hr Avg: 55 µg/m3
PM2.5
36 AQI
24-hr Avg: 6.5 µg/m3
24-hr Avg: 6.5 µg/m3
Saturday Forecast:
Ozone
50 AQI
Max 8-hr Avg: 54 ppb
Max 8-hr Avg: 54 ppb
PM10
48 AQI
24-hr Avg: 52 µg/m3
24-hr Avg: 52 µg/m3
PM2.5
29 AQI
24-hr Avg: 5.2 µg/m3
24-hr Avg: 5.2 µg/m3
Sunday Forecast:
Ozone
54 AQI
Max 8-hr Avg: 56 ppb
Max 8-hr Avg: 56 ppb
PM10
38 AQI
24-hr Avg: 41 µg/m3
24-hr Avg: 41 µg/m3
PM2.5
32 AQI
24-hr Avg: 5.8 µg/m3
24-hr Avg: 5.8 µg/m3
Monday Forecast:
Ozone
61 AQI
Max 8-hr Avg: 58 ppb
Max 8-hr Avg: 58 ppb
PM10
52 AQI
24-hr Avg: 57 µg/m3
24-hr Avg: 57 µg/m3
PM2.5
39 AQI
24-hr Avg: 7.0 µg/m3
24-hr Avg: 7.0 µg/m3
Tuesday Forecast:
Ozone
71 AQI
Max 8-hr Avg: 61 ppb
Max 8-hr Avg: 61 ppb
PM10
54 AQI
24-hr Avg: 61 µg/m3
24-hr Avg: 61 µg/m3
PM2.5
38 AQI
24-hr Avg: 6.9 µg/m3
24-hr Avg: 6.9 µg/m3
Air Quality By Pollutant:
Pollutant
Friday
4/18/2025
4/18/2025
Saturday
4/19/2025
4/19/2025
Sunday
4/20/2025
4/20/2025
Monday
4/21/2025
4/21/2025
Tuesday
4/22/2025
4/22/2025
O3
47
50
54
61
71
PM10
51
48
38
52
54
PM2.5
36
29
32
39
38
Pollutant
FRI
SAT
SUN
MON
TUE
O3
47
50
54
61
71
PM10
51
48
38
52
54
PM2.5
36
29
32
39
38
O3 = Ozone, PM10 = Particles ≤ 10 microns, PM2.5 = Particles ≤ 2.5 microns
Forecast Discussion:
Currently, precipitation is falling in northern AZ, with a squall line moving south towards the Flagstaff area. Recent model guidance shows very impressive rainfall totals for most of northeastern Arizona (of over half an inch of liquid equivalent), with even some rain possible down in the central part of the state!
With cloud cover moving in and increased surface winds, ozone will come in around the Good/Moderate AQI threshold. Afterwards, ozone will steadily increase into the Moderate AQI, with Monday's levels being slightly hindered by expected cloud cover. Ozone levels will likely increase closer to the USG AQI category by the middle of next week.
As for PM10, afternoon winds may cause brief spikes in dust, but trends will mainly be locally driven. If we are lucky and receive rain, it will help to lower levels overall going forward.
Enjoy your weekend and we'll see you on Monday!
- B. Droppleman
ADEQ Meteorologist
With cloud cover moving in and increased surface winds, ozone will come in around the Good/Moderate AQI threshold. Afterwards, ozone will steadily increase into the Moderate AQI, with Monday's levels being slightly hindered by expected cloud cover. Ozone levels will likely increase closer to the USG AQI category by the middle of next week.
As for PM10, afternoon winds may cause brief spikes in dust, but trends will mainly be locally driven. If we are lucky and receive rain, it will help to lower levels overall going forward.
Enjoy your weekend and we'll see you on Monday!
- B. Droppleman
ADEQ Meteorologist
What Flag Should I Fly?
Friday: Yellow
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Saturday: Green
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