Worst air pollution Glarus, today and tomorrow
Today (16 July): Air quality in Glarus is fair. AQI, NO2, and O3 are fair; PM2.5, PM10, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 1:00 PM (O3: 39.7/100).
Tomorrow (17 July 2026): Air quality in Glarus is fair. AQI improves to medium; NO2 decreases to medium; PM1 increases to fair; all other pollutants stay as today. Pollution peaks around 1:00 AM (NO2: 43.8/100). Airmine updates local air quality forecasts four times daily.
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Developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team
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Glarus' air quality reflects its narrow Alpine valley position beneath the Glärnisch massif, with legacy textile-industry traffic and vehicle emissions concentrating under calm conditions in this enclosed mountain valley.
Today - 16 July | Pollution peaks at 13:00
AQI:
Fair
39.7/100
PM2.5 (fine particles):
Good
14.7/100
PM10 (coarse particles):
Good
5.7/100
NO2 (nitrogen dioxide):
Fair
37.5/100
O3 (ozone):
Fair
39.7/100
SO2 (sulfur dioxide):
Good
1.4/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
5.3/100
PM1 (ultrafine particles):
Good
19.2/100
Levels show the poorest local air quality during the day
Tomorrow - 17 July | Pollution peaks at 01:00
AQI:
Medium
43.8/100
PM2.5 (fine particles):
Good
18.2/100
PM10 (coarse particles):
Good
6.6/100
NO2 (nitrogen dioxide):
Medium
43.8/100
O3 (ozone):
Fair
33.9/100
SO2 (sulfur dioxide):
Good
2.3/100
CO (carbon monoxide):
Good
0.0/100
HCHO (formaldehyde):
Good
6.0/100
PM1 (ultrafine particles):
Fair
20.9/100
Pollen forecast in Glarus
View pollen forecastFrequently Asked Questions
Is air quality bad in Glarus right now?
On 16 July 2026, overall air quality in Glarus is fair. AQI is the main air quality indicator at 39.7/100. Pollution peaks around 1:00 PM (O3: 39.7/100).
Will air quality be worse tomorrow in Glarus?
On 17 July 2026, air quality conditions in Glarus will be similar to today, with O3 forecast at fair at 33.9/100. Pollution peaks around 1:00 AM (NO2: 43.8/100).
When is air pollution at its worst in Glarus?
Calm winter conditions are when Glarus' air quality suffers most, with vehicle traffic and light industry settling into the valley instead of clearing with the wind as usual. The rest of the year sees much better conditions in this valley, with summer's ozone spikes limited to the hottest, stillest days.
Are air quality levels in Glarus 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