Calculated at 6:00 am EDT Friday, July 31, 2026

| Period | Forecast maximum (Issued at 6:00 am EDT July 31, 2026) | |
|---|---|---|
| Friday | 4 - Moderate Risk | ![]() |
| Friday night | 4 - Moderate Risk | ![]() |
| Saturday | 4 - Moderate Risk | ![]() |
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.