Worst air pollution Tempe, today and tomorrow
Today (15 July): Air quality in Tempe is fair. AQI, PM2.5, PM10, and O3 are fair; NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 9:00 AM (PM10: 31.8/100).
Tomorrow (16 July 2026): Air quality in Tempe is fair. PM2.5 decreases to good; all other pollutants stay as today. Pollution peaks around 8:00 AM (O3: 28.9/100). Airmine updates local air quality forecasts four times daily.
For long term forecasts and maps, see the Airmine app
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Tempe's air quality reflects the Phoenix metropolitan area's Valley of the Sun enclosed basin, with vehicle emissions from the Loop 101, I-10, and the concentrated Arizona State University student traffic generating elevated NOₓ alongside the nearby Phoenix Sky Harbor Airport's aviation emissions. Windblown Sonoran Desert dust contributes PM10 during haboob events, while summer ozone from the dense metropolitan traffic and intense desert heat are the primary recurring air quality concerns throughout the year.
Today - 15 July | Pollution peaks at 09:00
AQI:
Fair
31.8/100
PM2.5 (fine particles):
Fair
20.2/100
PM10 (coarse particles):
Fair
31.8/100
NO2 (nitrogen dioxide):
Good
1.4/100
O3 (ozone):
Fair
28.3/100
SO2 (sulfur dioxide):
Good
3.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.9/100
PM1 (ultrafine particles):
Good
3.6/100
Levels show the poorest local air quality during the day
Tomorrow - 16 July | Pollution peaks at 08:00
AQI:
Fair
28.9/100
PM2.5 (fine particles):
Good
14.9/100
PM10 (coarse particles):
Fair
24.9/100
NO2 (nitrogen dioxide):
Good
1.8/100
O3 (ozone):
Fair
28.9/100
SO2 (sulfur dioxide):
Good
3.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
0.9/100
PM1 (ultrafine particles):
Good
3.3/100
Pollen forecast in Tempe
View pollen forecastFrequently Asked Questions
Is air quality bad in Tempe right now?
On 15 July 2026, overall air quality in Tempe is fair. AQI is the main air quality indicator at 31.8/100. Pollution peaks around 9:00 AM (PM10: 31.8/100).
Will air quality be worse tomorrow in Tempe?
On 16 July 2026, air quality conditions in Tempe will be similar to today, with AQI forecast at fair at 28.9/100. Pollution peaks around 8:00 AM (O3: 28.9/100).
When is air pollution at its worst in Tempe?
Seasonal changes shape air quality across Tempe. In short, the cooler winter months typically bring the cleanest air of the year, whereas spring winds can kick up sudden dust storms that spike particulate levels sharply for a day or two. Monsoon storms in July and August can either clear the air with rain or stir up dust ahead of the storm front.
Are air quality levels in Tempe based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
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Data provided by Airmine — Last update: 16 July 2026 at 10:33 CEST (Data is updated four times daily.)
This forecast is produced independently using Airmine's own atmospheric data and models.
Unless explicitly made clear, the content on this site has not been paid for by external organisations and is Airmine's sole responsibility.
For long term forecasts and maps, see the Airmine app