St. Catharines - Air Quality Health Index - Next 24 Hours
Issued at: 5:00 PM EDT Saturday 11 July 2026
| Date / Time ( EDT ) |
Value |
|---|---|
| 12 July 2026 | |
| 05:00 | 4 - Moderate Risk
|
| 06:00 | 4 - Moderate Risk
|
| 07:00 | 4 - Moderate Risk
|
| 08:00 | 4 - Moderate Risk
|
| 09:00 | 4 - Moderate Risk
|
| 10:00 | 4 - Moderate Risk
|
| 11:00 | 4 - Moderate Risk
|
| 12:00 | 3 - Low Risk
|
| 13:00 | 3 - Low Risk
|
| 14:00 | 3 - Low Risk
|
| 15:00 | 3 - Low Risk
|
| 16:00 | 3 - Low Risk
|
| 17:00 | 2 - Low Risk
|
| 18:00 | 2 - Low Risk
|
| 19:00 | 2 - Low Risk
|
| 20:00 | 2 - Low Risk
|
| 21:00 | 2 - Low Risk
|
| 22:00 | 2 - Low Risk
|
| 23:00 | 2 - Low Risk
|
| 13 July 2026 | |
| 00:00 | 2 - Low Risk
|
| 01:00 | 2 - Low Risk
|
| 02:00 | 2 - Low Risk
|
| 03:00 | 2 - Low Risk
|
| 04:00 | 2 - Low Risk
|
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