Worst air pollution Cedar City, today and tomorrow
Today (16 July): Air quality in Cedar City is medium. AQI and O3 are medium; PM2.5, PM10, NO2, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 11:00 AM (O3: 41.0/100).
Tomorrow (17 July 2026): Air quality in Cedar City is fair. AQI worsens to fair; O3 increases to fair; all other pollutants stay as today. Pollution peaks around 12:00 PM (O3: 38.3/100). 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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Air quality in Cedar City is driven mostly by high desert dryness — generally clean air with excellent visibility most of the year. Overall, Cedar City sees air quality that tracks fairly closely with typical conditions for its wider region. Checking current readings is still the best way to plan outdoor activity around Cedar City.
Today - 16 July | Pollution peaks at 11:00
AQI:
Medium
41.0/100
PM2.5 (fine particles):
Good
19.5/100
PM10 (coarse particles):
Good
9.5/100
NO2 (nitrogen dioxide):
Good
11.2/100
O3 (ozone):
Medium
41.0/100
SO2 (sulfur dioxide):
Good
2.2/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.9/100
PM1 (ultrafine particles):
Good
12.9/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 12:00
AQI:
Fair
38.3/100
PM2.5 (fine particles):
Good
17.8/100
PM10 (coarse particles):
Good
7.5/100
NO2 (nitrogen dioxide):
Good
11.6/100
O3 (ozone):
Fair
38.3/100
SO2 (sulfur dioxide):
Good
2.9/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
2.2/100
PM1 (ultrafine particles):
Good
10.6/100
Pollen forecast in Cedar City
View pollen forecastFrequently Asked Questions
Is air quality bad in Cedar City right now?
On 16 July 2026, overall air quality in Cedar City is medium. AQI is the main air quality indicator at 41.0/100. Pollution peaks around 11:00 AM (O3: 41.0/100).
Will air quality be worse tomorrow in Cedar City?
On 17 July 2026, air quality conditions in Cedar City will be worse than today, with AQI forecast at fair at 38.3/100. Pollution peaks around 12:00 PM (O3: 38.3/100).
When is air pollution at its worst in Cedar City?
Seasonal changes shape air quality across Cedar City, as a brief window in autumn tends to bring the year's best air, before winter inversions set in; by contrast, wildfire smoke drifting in from across the region is the main summer concern, while winter inversions can trap pollution locally. Higher-elevation, more exposed locations generally avoid the worst of the valley inversion episodes.
Are air quality levels in Cedar 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.
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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