Worst air pollution Lehi, today and tomorrow
Today (9 August): Air quality in Lehi is fair. PM2.5, O3, and PM1 are fair; AQI and NO2 are medium; PM10, SO2, CO, and HCHO are good. Pollution peaks around 10:00 PM (NO2: 42.4/100).
Tomorrow (10 August 2026): Air quality in Lehi is fair. All pollutants stay as today. Pollution peaks around 10:00 PM (NO2: 46.7/100). Airmine updates local air quality forecasts four times daily.
Get the full experience in the Airmine app.
Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
Follow your pollen exposure and performance with the free Airmine–Strava integration. See your pollen and air quality exposure for every Strava activity.
Lehi's air quality faces Utah Valley's severe winter inversion problem, with the Utah Valley basin's topographic enclosure between the Wasatch and Oquirrh mountains trapping vehicle emissions under persistent cold-air pools. Vehicle emissions from I-15 and the Silicon Slopes technology campus corridor are the primary local sources, while summer air quality is generally excellent creating the dramatic seasonal contrast characteristic of Utah's enclosed mountain valley communities.
Today - 9 August | Pollution peaks at 22:00
AQI:
Medium
42.4/100
PM2.5 (fine particles):
Fair
25.9/100
PM10 (coarse particles):
Good
7.7/100
NO2 (nitrogen dioxide):
Medium
42.4/100
O3 (ozone):
Fair
34.2/100
SO2 (sulfur dioxide):
Good
5.5/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.7/100
PM1 (ultrafine particles):
Fair
30.8/100
Levels show the poorest local air quality during the day
Tomorrow - 10 August | Pollution peaks at 22:00
AQI:
Medium
46.7/100
PM2.5 (fine particles):
Fair
33.9/100
PM10 (coarse particles):
Good
10.4/100
NO2 (nitrogen dioxide):
Medium
46.7/100
O3 (ozone):
Fair
35.6/100
SO2 (sulfur dioxide):
Good
5.1/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
8.0/100
PM1 (ultrafine particles):
Fair
39.6/100
Pollen forecast in Lehi
View pollen forecastFrequently Asked Questions
Is air quality bad in Lehi right now?
On 9 August 2026, overall air quality in Lehi is fair. O3 is the main pollutant at 34.2/100. Pollution peaks around 10:00 PM (NO2: 42.4/100).
Will air quality be worse tomorrow in Lehi?
On 10 August 2026, air quality conditions in Lehi will be similar to today, with PM1 forecast at fair at 39.6/100. Pollution peaks around 10:00 PM (NO2: 46.7/100).
When is air pollution at its worst in Lehi?
Lehi experiences a distinct seasonal swing in air quality, as a brief window in autumn tends to bring the year's best air, before winter inversions set in; by contrast, valley and basin locations can see pollution trapped under cold air for days during winter inversions. Higher-elevation, more exposed locations generally avoid the worst of the valley inversion episodes.
Are air quality levels in Lehi 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.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
Want to see air quality forecasts for other cities in United States?
Check air quality in other popular cities:
Data provided by Airmine — Last update: 9 August 2026 at 20:27 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.
Disclaimer: Forecasts are provided for informational purposes only and should not be relied upon as medical advice. Actual pollen and air quality conditions may vary from the forecast. If you have allergies, asthma, or another medical condition, consult a healthcare professional. Please see our Terms of Service for important information about limitations of liability.
Get the full experience in the Airmine app.