Calculated at 4:00 pm EDT Saturday, July 5, 2025
4

low risk
(1 - 3)
moderate risk
(4 - 6)
high risk
(7 - 10)
very high risk
Forecast for Newmarket
- Forecast Air Quality Health Index maximums for Newmarket
- Issued at: 6:00 am EDT July 5, 2025
Forecast Air Quality Health Index maximums for Newmarket
Saturday night | 4 - Moderate Risk |  |
Sunday | 4 - Moderate Risk |  |
Health message for Newmarket
- Current Air Quality Health Index:
4
- Calculated at 4:00 pm EDT Saturday, July 5, 2025
- Risk: Moderate
At-risk population:
General population:
- No need to modify your usual outdoor activities unless you experience symptoms such as coughing and throat irritation.
See the Ontario Ministry of the Environment, Conservation and Parks air quality health messages.
Note: AQHI readings on this web page are based on automatically polled data and have not undergone final verification.