Tucson Forecast

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Air Quality Hourly Forecast | Tucson

Click on each day to view forecast.

Monday Forecast:


Ozone

44 AQI
Max 8-hr Avg: 48 ppb

PM10

40 AQI
24-hr Avg: 43 µg/m3

Tuesday Forecast:


Ozone

43 AQI
Max 8-hr Avg: 46 ppb

PM10

36 AQI
24-hr Avg: 39 µg/m3

Wednesday Forecast:


Ozone

51 AQI
Max 8-hr Avg: 55 ppb

PM10

34 AQI
24-hr Avg: 37 µg/m3

Thursday Forecast:


Ozone

51 AQI
Max 8-hr Avg: 55 ppb

PM10

38 AQI
24-hr Avg: 41 µg/m3

Friday Forecast:


Ozone

49 AQI
Max 8-hr Avg: 53 ppb

PM10

36 AQI
24-hr Avg: 39 µg/m3

Air Quality By Pollutant:

Pollutant
Monday
9/28/2020
Tuesday
9/29/2020
Wednesday
9/30/2020
Thursday
10/1/2020
Friday
10/2/2020
O3
44
43
51
51
49
PM10
40
36
34
38
36
Pollutant
MON
TUE
WED
THU
FRI
O3
44
43
51
51
49
PM10
40
36
34
38
36
O3 = Ozone, PM10 = Particles ≤ 10 microns, PM2.5 = Particles ≤ 2.5 microns

Forecast Discussion:

This morning, the weather set-up shows strong high pressure over the California-Oregon border with a potent trough dropping southward through the Plains. For Arizona, a weak cold front is moving through the region and will result in gusty easterly winds of 15-25mph later this afternoon through tomorrow afternoon. Unfortunately, this front will not result in much cooling; however, temperatures are forecast to stay out of the triple digits today and tomorrow.

For the middle of the week through the weekend, high pressure will weaken and slowly drift toward the south over Arizona. This pattern will result in light winds and mainly clear skies, with afternoon high temperatures returning to the 100 to 102-degree range.

As for air quality, ozone is forecast to be in the Good AQI category today and tomorrow with the breezy winds. Traditionally, average ozone concentrations this time of year are in the Good AQI category due to the shorter daylengths as we head into the end of September. However, later this week, with very calm winds, we will have ozone in the Moderate AQI category on Wednesday and Thursday. PM-10 might see a slight increase overnight with the gusty winds but still expecting values to remain in the Good AQI category.

Have a great Monday!

- M. Pace
ADEQ Meteorologist


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