Tucson Forecast

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Air Quality Hourly Forecast | Tucson

Click on each day to view forecast.

Monday Forecast:


Ozone

77 AQI
Max 8-hr Avg: 63 ppb

PM10

20 AQI
24-hr Avg: 22 µg/m3

Tuesday Forecast:


Ozone

67 AQI
Max 8-hr Avg: 60 ppb

PM10

23 AQI
24-hr Avg: 25 µg/m3

Wednesday Forecast:


Ozone

58 AQI
Max 8-hr Avg: 57 ppb

PM10

22 AQI
24-hr Avg: 24 µg/m3

Thursday Forecast:


Ozone

61 AQI
Max 8-hr Avg: 58 ppb

PM10

19 AQI
24-hr Avg: 21 µg/m3

Friday Forecast:


Ozone

74 AQI
Max 8-hr Avg: 62 ppb

PM10

24 AQI
24-hr Avg: 26 µg/m3

Air Quality By Pollutant:

Pollutant
Monday
7/15/2019
Tuesday
7/16/2019
Wednesday
7/17/2019
Thursday
7/18/2019
Friday
7/19/2019
O3
77
67
58
61
74
PM10
20
23
22
19
24
Pollutant
MON
TUE
WED
THU
FRI
O3
77
67
58
61
74
PM10
20
23
22
19
24
O3 = Ozone, PM10 = Particles ≤ 10 microns, PM2.5 = Particles ≤ 2.5 microns

Forecast Discussion:

The monsoon has now included Tucson for wind, rain, and thunder. Although Tucson International Airport has only received about a quarter inch, the surrounding area has estimated to have logged between one and two inches at some locations over the last few days. With accumulating rain expanding within and around the metropolitan, the blowing dust threat is diminishing. We forecast PM10 levels to hold in the Good AQI range as daily thunderstorms continue.

Ozone is trickier due to its propensity to quickly ramp up before afternoon thunderstorm dispersal effects and cloud cover kick in. Unless there is abundant cloud cover and/or an earlier than typical start to mountain convection, the net result is an ozone forecast at least in the low to mid Moderates.

The other weather aspect to be mindful of right now is the dangerous heat. The National Weather Service has issued an Excessive Heat Warning effective for Tucson through tomorrow.

Stay cool and enjoy the rest of the day!


- J. Malloy
ADEQ Meteorologist


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