Thunder Bay: current Air Quality Health Index (AQHI)

For 1:00 am EST Tuesday, December 23, 2025

The AQHI calculation for Thunder Bay is not available at this time.

Forecast for Thunder Bay

• Forecast Air Quality Health Index maximums for Thunder Bay
• Issued at: 5:00 pm EST December 22, 2025

Forecast Air Quality Health Index maximums for Thunder Bay

Period	Forecast maximum (Issued at 5:00 pm EST December 22, 2025)
Monday	2 - Low Risk
Monday night	2 - Low Risk
Tuesday	2 - Low Risk

Health message for Thunder Bay

• Current Air Quality Health Index: Not available
• For 1:00 am EST Tuesday, December 23, 2025

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.