Info-Smog
Quebec is the only province that uses the Info-Smog program. The rest of Canada uses the Air Quality Health Index.
Current conditions and forecasts
Find current conditions and air quality forecasts for your area.
Current air quality
- real-time Air Quality Index (AQI) in Quebec (source: Government of Quebec)
- real-time Air Quality Index (AQI) for the city of Montreal (source: City of Montreal)
Air quality forecasts
- Air Quality Index forecast for southern Quebec
- Air Quality Health Index (AQHI) for Montreal, Quebec City and Gatineau
Smog and air quality alerts
Areas covered by Info-Smog
Check Quebec’s interactive map of the Air Quality Index (in French only) to see the regions that use Info-Smog.
Air quality forecast times
We issue air quality forecasts daily at:
- 5:00 a.m. EST (forecast for today, tonight and tomorrow)
- 4:00 p.m. EST (forecast for the evening, tonight and tomorrow)
Get updates from our official text forecasts.
Air quality categories
Info-Smog includes air quality forecasts to help protect public health. There are three categories of air quality forecasts:
- good
- fair
- poor
To choose the category, our meteorologists look at two factors:
- the expected weather conditions
- how much ozone and fine particulate matter are expected to be in the air
The Info-Smog is calculated using the Air Quality Index (AQI) method, for ozone and fine particulate matter.
We may change the forecast at any time if necessary.
Smog warnings
When the air quality is poor, we issue a smog warning for the impacted areas. Smog warnings include advice for how people at risk can reduce the health risks of smog. You can find all weather alerts on our interactive weather map and on the WeatherCAN app.