Tucson Forecast

Image of Downtown Tucson

Air Quality Hourly Forecast | Tucson

Click on each day to view forecast.

Tuesday Forecast:


Ozone

44 AQI
Max 8-hr Avg: 48 ppb

PM10

35 AQI
24-hr Avg: 38 µg/m3

PM2.5

49 AQI
24-hr Avg: 11.7 µg/m3

Wednesday Forecast:


Ozone

43 AQI
Max 8-hr Avg: 46 ppb

PM10

37 AQI
24-hr Avg: 40 µg/m3

PM2.5

43 AQI
24-hr Avg: 10.3 µg/m3

Thursday Forecast:


Ozone

44 AQI
Max 8-hr Avg: 47 ppb

PM10

36 AQI
24-hr Avg: 39 µg/m3

PM2.5

40 AQI
24-hr Avg: 9.5 µg/m3

Friday Forecast:


Ozone

47 AQI
Max 8-hr Avg: 51 ppb

PM10

32 AQI
24-hr Avg: 35 µg/m3

PM2.5

43 AQI
24-hr Avg: 10.3 µg/m3

Saturday Forecast:


Ozone

45 AQI
Max 8-hr Avg: 49 ppb

PM10

31 AQI
24-hr Avg: 34 µg/m3

PM2.5

38 AQI
24-hr Avg: 9.2 µg/m3

Air Quality By Pollutant:

Pollutant
Tuesday
4/13/2021
Wednesday
4/14/2021
Thursday
4/15/2021
Friday
4/16/2021
Saturday
4/17/2021
O3
44
43
44
47
45
PM10
35
37
36
32
31
PM2.5
49
43
40
43
38
Pollutant
TUE
WED
THU
FRI
SAT
O3
44
43
44
47
45
PM10
35
37
36
32
31
PM2.5
49
43
40
43
38
O3 = Ozone, PM10 = Particles ≤ 10 microns, PM2.5 = Particles ≤ 2.5 microns

Forecast Discussion:

Upper-atmospheric winds will be quite active over the Southwest this week, culminating in the development of a strong jet stream over Arizona by Thursday. At the ground, this pattern will mean daily breezy winds in Tucson. Winds will be out of the southwest today and Wednesday, out of the west on Thursday, and out of the west-northwest on Friday and Saturday. And winds are generally looking to be at least 15-20 mph with higher gusts today through Friday.

Air quality-wise, the discussed winds are expected to help limit how high ozone will be able to reach in the afternoons. As a result, ozone is forecast in the Good Air Quality Index (AQI) category each day.

Both PM10 (dust) and PM2.5 (smoke) are also forecast in the Good AQI category each day. However, we can't rule out the possibility of pockets of blowing dust in desert areas because of the winds. Plus, elevated PM10/PM2.5 levels may be possible in the morning/evenings from local activity under light winds.

- M. Graves
ADEQ Meteorologist


What Flag Should I Fly?

Tuesday: Green
Wednesday: Green

What is the Flag Program and how can my school/organization join? | Learn More >