Worst air pollution Salt Lake City, today and tomorrow
Today (16 July): Air quality in Salt Lake City is fair. AQI and O3 are fair; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 10:00 AM (O3: 37.6/100).
Tomorrow (17 July 2026): Air quality in Salt Lake City is medium. AQI improves to medium; O3 decreases to medium; all other pollutants stay as today. Pollution peaks around 10:00 AM (O3: 40.4/100). 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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Salt Lake City's air quality faces some of the US's most severe winter inversion problems, with the Wasatch Front's enclosed mountain-valley topography trapping vehicle and industrial emissions under persistent cold-air pools that can persist for weeks. Summer air quality is generally excellent with clean Rocky Mountain airflows, creating dramatic seasonal air quality contrasts.
Today - 16 July | Pollution peaks at 10:00
AQI:
Fair
37.6/100
PM2.5 (fine particles):
Good
9.5/100
PM10 (coarse particles):
Good
9.6/100
NO2 (nitrogen dioxide):
Good
2.7/100
O3 (ozone):
Fair
37.6/100
SO2 (sulfur dioxide):
Good
0.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.7/100
PM1 (ultrafine particles):
Good
5.2/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 10:00
AQI:
Medium
40.4/100
PM2.5 (fine particles):
Good
6.4/100
PM10 (coarse particles):
Good
3.1/100
NO2 (nitrogen dioxide):
Good
4.2/100
O3 (ozone):
Medium
40.4/100
SO2 (sulfur dioxide):
Good
0.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.3/100
PM1 (ultrafine particles):
Good
4.1/100
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Frequently Asked Questions
Is air quality bad in Salt Lake City right now?
On 16 July 2026, overall air quality in Salt Lake City is fair. AQI is the main air quality indicator at 37.6/100. Pollution peaks around 10:00 AM (O3: 37.6/100).
Will air quality be worse tomorrow in Salt Lake City?
On 17 July 2026, air quality conditions in Salt Lake City will be better than today, with AQI forecast at medium at 40.4/100. Pollution peaks around 10:00 AM (O3: 40.4/100).
When is air pollution at its worst in Salt Lake City?
Air quality across Salt Lake City rises and falls with the seasons: spring and autumn generally bring the cleanest, most stable air, but summer brings regional wildfire smoke, while winter brings its own inversion-driven pollution episodes. Valley and basin locations are especially prone to these winter inversion episodes compared to more exposed, higher terrain.
Are air quality levels in Salt Lake City 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.
Want to see air quality forecasts for other cities in United States?
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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