For 1:00 am EST Monday, February 23, 2026
The AQHI calculation for Thunder Bay is not available at this time.
| Period | Forecast maximum (Issued at 5:00 pm EST February 22, 2026) | |
|---|---|---|
| Sunday | 2 - Low Risk | ![]() |
| Sunday night | 2 - Low Risk | ![]() |
| Monday | 2 - 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.