St. Catharines: Current Air Quality Health Index

Calculated at 8:00 pm EDT Sunday, June 15, 2025

2

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 St. Catharines

• Forecast Air Quality Health Index maximums for St. Catharines
• Issued at: 5:00 pm EDT June 15, 2025

Forecast Air Quality Health Index maximums for St. Catharines

Period	Forecast Maximum (Issued at 5:00 pm EDT June 15, 2025)
Sunday Night	2 - Low Risk
Monday	2 - Low Risk

Health Message for St. Catharines

• Current Air Quality Health Index: 2
• Calculated at 8:00 pm EDT Sunday, June 15, 2025
• Risk: Low

At-Risk Population:

• Enjoy your usual outdoor activities.
• Find out if you are at risk

General Population:

• Ideal air quality for outdoor activities.