Worst air pollution West Lethbridge - Lethbridge, today and tomorrow
Today (16 July): Air quality in West Lethbridge 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: 28.8/100).
Tomorrow (17 July 2026): Air quality in West Lethbridge is fair. All pollutants stay as today. Pollution peaks around 10:00 AM (O3: 22.7/100). 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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West Lethbridge's air quality benefits from open prairie exposure and strong winds, with Highway 25 traffic the modest primary local source.
Today - 16 July | Pollution peaks at 10:00
AQI:
Fair
28.8/100
PM2.5 (fine particles):
Good
7.4/100
PM10 (coarse particles):
Good
2.7/100
NO2 (nitrogen dioxide):
Good
2.6/100
O3 (ozone):
Fair
28.8/100
SO2 (sulfur dioxide):
Good
0.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
3.8/100
PM1 (ultrafine particles):
Good
6.1/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 10:00
AQI:
Fair
22.7/100
PM2.5 (fine particles):
Good
10.4/100
PM10 (coarse particles):
Good
3.7/100
NO2 (nitrogen dioxide):
Good
3.6/100
O3 (ozone):
Fair
22.7/100
SO2 (sulfur dioxide):
Good
0.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
1.6/100
PM1 (ultrafine particles):
Good
8.7/100
Other Landmarks in Lethbridge
Sports venues in Lethbridge
Frequently Asked Questions
Is air quality bad in West Lethbridge right now?
On 16 July 2026, overall air quality in West Lethbridge is fair. AQI is the main air quality indicator at 28.8/100. Pollution peaks around 10:00 AM (O3: 28.8/100).
Will air quality be worse tomorrow in West Lethbridge?
On 17 July 2026, air quality conditions in West Lethbridge will be similar to today, with AQI forecast at fair at 22.7/100. Pollution peaks around 10:00 AM (O3: 22.7/100).
When is air pollution at its worst in West Lethbridge?
West Lethbridge's air quality changes through the year largely because of its open, wind-exposed streets near Highway 25. Winter's sudden chinook winds can melt snow and clear the air within hours, while summer heat and wildfire smoke drifting from the Rockies occasionally push pollution higher. These warm winter winds are one of the most distinctive features of the local climate.
Are air quality levels in West Lethbridge 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