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Click on each day to view forecast.

Friday Forecast:


Ozone

41 AQI
Max 8-hr Avg: 44 ppb

PM10

15 AQI
24-hr Avg: 16 µg/m3

PM2.5

29 AQI
24-hr Avg: 5.3 µg/m3

Saturday Forecast:


Ozone

40 AQI
Max 8-hr Avg: 43 ppb

PM10

17 AQI
24-hr Avg: 18 µg/m3

PM2.5

36 AQI
24-hr Avg: 6.4 µg/m3

Sunday Forecast:


Ozone

37 AQI
Max 8-hr Avg: 40 ppb

PM10

16 AQI
24-hr Avg: 17 µg/m3

PM2.5

34 AQI
24-hr Avg: 6.2 µg/m3

Monday Forecast:


Ozone

34 AQI
Max 8-hr Avg: 37 ppb

PM10

11 AQI
24-hr Avg: 12 µg/m3

PM2.5

22 AQI
24-hr Avg: 4.0 µg/m3

Tuesday Forecast:


Ozone

39 AQI
Max 8-hr Avg: 42 ppb

PM10

6 AQI
24-hr Avg: 7 µg/m3

PM2.5

25 AQI
24-hr Avg: 4.5 µg/m3

Air Quality By Pollutant:

Pollutant
Friday
9/25/2026
Saturday
9/26/2026
Sunday
9/27/2026
Monday
9/28/2026
Tuesday
9/29/2026
O3
41
40
37
34
39
PM10
15
17
16
11
6
PM2.5
29
36
34
22
25
Pollutant
FRI
SAT
SUN
MON
TUE
O3
41
40
37
34
39
PM10
15
17
16
11
6
PM2.5
29
36
34
22
25
O3 = Ozone, PM10 = Particles ≤ 10 microns, PM2.5 = Particles ≤ 2.5 microns


Forecast Discussion:

Today (Friday) and Saturday, high pressure will bring a brief lull in the active weather. Winds will lighten up and conditions will dry out. However, by Sunday, another low-pressure wave will begin moving into the West Coast from the Pacific Ocean. Currently, it looks like skies will become cloudier again on Sunday. Then by Monday and into Tuesday, the wave will interact with moisture originating from Hurricane Polo and result in another rainy period.

As for the air quality, ozone is expected to be its highest of the period today and Saturday. But by Sunday and early next week, the active weather is expected to keep ozone levels lower.

PM10 (dust) levels have been low and are expected to stay pretty low, especially with next week's rain. PM2.5 (smoke) however, may have the potential to be locally elevated during stagnant morning or evening conditions.

Check back on Monday for the next forecast.

- M. Graves
ADEQ Meteorologist


What Flag Should I Fly?

Friday: Green
Air quality is good.
Saturday: Green
Air quality is good.