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Wednesday Forecast:

Notice
Notice: Blowing dust possible this evening/night

Ozone

61 AQI
Max 8-hr Avg: 58 ppb

PM10

76 AQI
24-hr Avg: 105 µg/m3

PM2.5

59 AQI
24-hr Avg: 13.5 µg/m3

Thursday Forecast:


Ozone

58 AQI
Max 8-hr Avg: 57 ppb

PM10

64 AQI
24-hr Avg: 81 µg/m3

PM2.5

45 AQI
24-hr Avg: 8.1 µg/m3

Friday Forecast:


Ozone

51 AQI
Max 8-hr Avg: 55 ppb

PM10

62 AQI
24-hr Avg: 77 µg/m3

PM2.5

43 AQI
24-hr Avg: 7.8 µg/m3

Saturday Forecast:


Ozone

49 AQI
Max 8-hr Avg: 53 ppb

PM10

58 AQI
24-hr Avg: 70 µg/m3

PM2.5

40 AQI
24-hr Avg: 7.2 µg/m3

Sunday Forecast:


Ozone

48 AQI
Max 8-hr Avg: 52 ppb

PM10

57 AQI
24-hr Avg: 68 µg/m3

PM2.5

39 AQI
24-hr Avg: 7.0 µg/m3

Air Quality By Pollutant:

Pollutant
Wednesday
6/3/2026
Thursday
6/4/2026
Friday
6/5/2026
Saturday
6/6/2026
Sunday
6/7/2026
O3
61
58
51
49
48
PM10
76
64
62
58
57
PM2.5
59
45
43
40
39
Pollutant
WED
THU
FRI
SAT
SUN
O3
61
58
51
49
48
PM10
76
64
62
58
57
PM2.5
59
45
43
40
39
O3 = Ozone, PM10 = Particles ≤ 10 microns, PM2.5 = Particles ≤ 2.5 microns


Forecast Discussion:

This evening, Pinal County could see its first strong thunderstorm outflow winds of the summer. These winds would/will originate from thunderstorms to the east. Blowing dust will be possible, even significant dust could be possible. We've thus increased the hourly PM10 (dust) graph to reflect this potential. Uncertainty makes it hard to pin down how high PM10 levels could reach. This will be the first test of the season, to see how much dust might be out there.

After today, there will be more opportunities for wind-driven dust this week: tomorrow evening and during the afternoons over the weekend. Moderate levels of PM10 will be possible.

PM2.5 will generally follow PM10 trends.

Lastly ozone levels will likely continue in the Moderate AQI category the next few days. But over the weekend, stronger winds should help to limit ozone levels and perhaps push them back down into the Good AQI category.

Check back tomorrow for the next update to the West Pinal forecast.

- M. Graves
ADEQ Meteorologist


What Flag Should I Fly?

Wednesday: Yellow
Air Quality chart showing the air quality to be Yellow for Moderate for this specific time or day. Moderate air quality may be a health concern for those who are unusually sensitive to air pollution.
Thursday: Yellow
Air Quality chart showing the air quality to be Yellow for Moderate for this specific time or day. Moderate air quality may be a health concern for those who are unusually sensitive to air pollution.