Guelph - Air Quality Health Index
2Low Risk
Moderate Risk
(4-6)
High Risk
(7-10)
Very High Risk
At-Risk Population:
- Enjoy your usual outdoor activities.
- Find out if you are at risk
General Population:
- Ideal air quality for outdoor activities.
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...?
Cleaning or replacing a dirty air filter in your furnace or air conditioner can save almost 160 kilograms of carbon dioxide a year.
The AQHI is an initiative between Environment Canada, Health Canada and the Province of Ontario.

Observed ConditionsFootnote †
2 - Low Risk
Calculated at:
2:00 AM EST Monday 25 January 2021
Forecast Maximums
Issued at:
5:00 PM EST Sunday 24 January 2021
The AQHI is an initiative between Environment Canada, Health Canada and the Province of Ontario.
What we are doing
Weather Forecasts
Weather Alerts
Weather Resources
Features
Need to travel Alberta Highway 93?

Go prepared with Highway 93 forecasts. Highway regions are available in the Alberta text forecast bulletin between Lake Louise and Jasper. (Photo by: Natalie Anderson)
- Date modified: