Tucson Forecast

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Air Quality Hourly Forecast | Tucson

Click on each day to view forecast.

Wednesday Forecast:


Ozone

38 AQI
Max 8-hr Avg: 41 ppb

PM10

26 AQI
24-hr Avg: 28 µg/m3

PM2.5

33 AQI
24-hr Avg: 7.8 µg/m3

Thursday Forecast:


Ozone

40 AQI
Max 8-hr Avg: 43 ppb

PM10

36 AQI
24-hr Avg: 39 µg/m3

PM2.5

35 AQI
24-hr Avg: 8.3 µg/m3

Friday Forecast:


Ozone

41 AQI
Max 8-hr Avg: 44 ppb

PM10

33 AQI
24-hr Avg: 36 µg/m3

PM2.5

36 AQI
24-hr Avg: 8.7 µg/m3

Saturday Forecast:


Ozone

40 AQI
Max 8-hr Avg: 43 ppb

PM10

32 AQI
24-hr Avg: 35 µg/m3

PM2.5

30 AQI
24-hr Avg: 7.2 µg/m3

Sunday Forecast:


Ozone

36 AQI
Max 8-hr Avg: 39 ppb

PM10

24 AQI
24-hr Avg: 26 µg/m3

PM2.5

25 AQI
24-hr Avg: 6.0 µg/m3

Air Quality By Pollutant:

Pollutant
Wednesday
1/19/2022
Thursday
1/20/2022
Friday
1/21/2022
Saturday
1/22/2022
Sunday
1/23/2022
O3
38
40
41
40
36
PM10
26
36
33
32
24
PM2.5
33
35
36
30
25
Pollutant
WED
THU
FRI
SAT
SUN
O3
38
40
41
40
36
PM10
26
36
33
32
24
PM2.5
33
35
36
30
25
O3 = Ozone, PM10 = Particles ≤ 10 microns, PM2.5 = Particles ≤ 2.5 microns

Forecast Discussion:

Tucson saw some reasonably widespread rainfall yesterday, with a number of locations measuring between 0.04 and 0.08 inches. Tucson International officially picked up 0.04 inches, but rain gauges in the north part of the region near Tangerine and Camino de Oeste measured 0.18 to 0.23 inches!

The low that brought the rain to the area yesterday is now moving east into Oklahoma, with another weak disturbance moving through the state this morning, but you likely won't even notice it is moving through. The main weather feature is high pressure building into the Southwest US and will stay over the area through Friday. This will result in clearing skies and afternoon high temperatures rising back into the 70s.

This weekend, an area of low pressure that is currently just south of the Aleutian Islands will drop down the front side of the high, through Utah and into Arizona. It will stall out just south of Arizona on Sunday before moving east to start next week. This pattern shift will cause breezes Saturday into Sunday, along with increasing clouds and even a slight chance of rain. Right now, rain totals with this system are forecast to be in the 0.01-0.15 inch range. Afternoon high temperatures are also forecast to lower back into the low 60s this weekend.

As for air quality, forecasting ozone, PM-10, and PM-2.5 to be in the Good AQI category through the forecast period.

- M. Pace
ADEQ Meteorologist


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Wednesday: Green
Thursday: Green

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