Montréal - Air Quality Health Index
Current conditions not calculated
Saturday night
Sunday
Sunday night
Monday
Who is at risk?
People with heart and lung conditions are most affected by air pollution.
To find out if you are at risk, consult the health guide, or your physician.
Visit the national AQHI Web site to learn more about the AQHI.
Did you know...?
Taking steps to reduce air pollution also helps slow global warming.
The AQHI is an initiative of Environment Canada and Health Canada. The AQHI forecast in Quebec is made possible, in part, by data from the air quality monitoring networks of the ministère de l'Environnement et de la Lutte contre les changements climatiques du Québec and the City of Montréal.

Observed Conditions
Current conditions not calculated
Forecast Maximums
Issued at:
5:00 PM EDT Saturday 10 October 2026
The AQHI is an initiative of Environment Canada and Health Canada. The AQHI forecast in Quebec is made possible, in part, by data from the air quality monitoring networks of the ministère de l'Environnement et de la Lutte contre les changements climatiques du Québec and the City of Montréal.
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