Calculated at 3:00 pm EDT Saturday, April 18, 2026

| Period | Forecast maximum (Issued at 6:00 am EDT April 18, 2026) | |
|---|---|---|
| Saturday | 3 - Low Risk | ![]() |
| Saturday night | 3 - Low Risk | ![]() |
| Sunday | 3 - Low 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.