Cornwall: current Air Quality Health Index (AQHI)

Calculated at 12:00 am EDT Saturday, June 6, 2026

4

1

2

3

4

5

6

7

8

9

10

+

low risk
(1 - 3)

moderate risk
(4 - 6)

high risk
(7 - 10)

very high risk

Forecast for Cornwall

• Forecast Air Quality Health Index maximums for Cornwall
• Issued at: 6:46 pm EDT June 5, 2026

Forecast Air Quality Health Index maximums for Cornwall

Period	Forecast maximum (Issued at 6:46 pm EDT June 5, 2026)
Friday	4 - Moderate Risk
Friday night	3 - Low Risk
Saturday	3 - Low Risk

Health message for Cornwall

• Current Air Quality Health Index: 4
• Calculated at 12:00 am EDT Saturday, June 6, 2026
• Risk: Moderate

At-risk population:

• Consider reducing or rescheduling strenuous activities outdoors if you are experiencing symptoms.
• Find out if you are at risk

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.