Tucson Forecast

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Air Quality Hourly Forecast | Tucson

Click on each day to view forecast.

Monday Forecast:


Ozone

42 AQI
Max 8-hr Avg: 45 ppb

PM10

42 AQI
24-hr Avg: 45 µg/m3

PM2.5

52 AQI
24-hr Avg: 12.6 µg/m3

Tuesday Forecast:


Ozone

40 AQI
Max 8-hr Avg: 43 ppb

PM10

43 AQI
24-hr Avg: 46 µg/m3

PM2.5

48 AQI
24-hr Avg: 11.5 µg/m3

Wednesday Forecast:


Ozone

40 AQI
Max 8-hr Avg: 43 ppb

PM10

44 AQI
24-hr Avg: 47 µg/m3

PM2.5

45 AQI
24-hr Avg: 10.9 µg/m3

Thursday Forecast:


Ozone

35 AQI
Max 8-hr Avg: 38 ppb

PM10

47 AQI
24-hr Avg: 51 µg/m3

PM2.5

42 AQI
24-hr Avg: 10.0 µg/m3

Friday Forecast:


Ozone

36 AQI
Max 8-hr Avg: 39 ppb

PM10

27 AQI
24-hr Avg: 29 µg/m3

PM2.5

28 AQI
24-hr Avg: 6.7 µg/m3

Air Quality By Pollutant:

Pollutant
Monday
12/6/2021
Tuesday
12/7/2021
Wednesday
12/8/2021
Thursday
12/9/2021
Friday
12/10/2021
O3
42
40
40
35
36
PM10
42
43
44
47
27
PM2.5
52
48
45
42
28
Pollutant
MON
TUE
WED
THU
FRI
O3
42
40
40
35
36
PM10
42
43
44
47
27
PM2.5
52
48
45
42
28
O3 = Ozone, PM10 = Particles ≤ 10 microns, PM2.5 = Particles ≤ 2.5 microns

Forecast Discussion:

Over the weekend, ozone and PM10 stayed in the Good AQI range, while PM2.5 was in the low Moderates. As for the weather, we saw afternoon highs in the mid 70's with light winds and sunny skies. Looking at today, we aren't expecting much change. Calm weather conditions may once again allow PM2.5 concentrations to reach into the low Moderates.

Tomorrow, a trough will begin moving into the region, which should bring some afternoon breezes. These breezes should help lower PM2.5 levels, but may also kick up a little dust during the stronger winds. Fortunately, the winds aren't expected to be strong enough to cause any major issues tomorrow. The trough will continue to influence the region through the remainder of the week. The largest impacts will be on Thursday with strong winds and rain. We are forecasting increased PM10 levels during the early afternoon with winds gusting up around 35 mph. However, we are forecasting rain in the evening, which should cause particulate levels to drop significantly. This should help keep particulates in the Good AQI range on Thursday even with the brief period of elevated dust. Then, we forecast much lower particulate levels on Friday due to the more stable soils from the rain.

- R. Nicoll
ADEQ Meteorologist


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