Ontario - Air Quality Health Index - Summary
Forecast Regions
| Location and sub-locations | Observed Conditions | Forecast Maximums | ||||
|---|---|---|---|---|---|---|
| Monday | Monday night | Tuesday | Tuesday night | |||
| Barrie | 3 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
|
| Belleville | 2 Low Risk |
3 Low Risk |
3 Low Risk |
3 Low Risk |
2 Low Risk |
|
| Brampton | 2 Low Risk |
3 Low Risk |
3 Low Risk |
3 Low Risk |
3 Low Risk |
|
| Brantford | 2 Low Risk |
3 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
|
| Burlington | 2 Low Risk |
3 Low Risk |
3 Low Risk |
2 Low Risk |
2 Low Risk |
|
| Chatham | 2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
|
| Cornwall | 2 Low Risk |
2 Low Risk |
3 Low Risk |
2 Low Risk |
2 Low Risk |
|
| Dorset | 2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
|
| Grand Bend | 2 Low Risk |
3 Low Risk |
3 Low Risk |
2 Low Risk |
2 Low Risk |
|
| Guelph | 3 Low Risk |
3 Low Risk |
3 Low Risk |
2 Low Risk |
2 Low Risk |
|
| Hamilton | 2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
|
| 2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
||
| 2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
||
| 2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
||
| Kingston | 2 Low Risk |
3 Low Risk |
3 Low Risk |
2 Low Risk |
2 Low Risk |
|
| Kitchener | 2 Low Risk |
3 Low Risk |
3 Low Risk |
2 Low Risk |
2 Low Risk |
|
| London | 3 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
|
| Milton | 2 Low Risk |
3 Low Risk |
3 Low Risk |
2 Low Risk |
2 Low Risk |
|
| Mississauga | 2 Low Risk |
3 Low Risk |
3 Low Risk |
3 Low Risk |
3 Low Risk |
|
| Newmarket | 2 Low Risk |
3 Low Risk |
3 Low Risk |
2 Low Risk |
2 Low Risk |
|
| North Bay | 2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
|
| Oakville | 2 Low Risk |
3 Low Risk |
3 Low Risk |
2 Low Risk |
2 Low Risk |
|
| Oshawa | 2 Low Risk |
3 Low Risk |
3 Low Risk |
3 Low Risk |
2 Low Risk |
|
| Ottawa | 2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
|
| Parry Sound | 2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
|
| Peterborough | 3 Low Risk |
3 Low Risk |
3 Low Risk |
2 Low Risk |
2 Low Risk |
|
| Port Stanley | 2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
|
| Sarnia | 2 Low Risk |
3 Low Risk |
3 Low Risk |
3 Low Risk |
2 Low Risk |
|
| Sault Ste. Marie | 2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
|
| St. Catharines | 2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
|
| Sudbury | 2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
|
| Thunder Bay | 2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
2 Low Risk |
|
| Tiverton | 2 Low Risk |
2 Low Risk |
3 Low Risk |
2 Low Risk |
2 Low Risk |
|
| Toronto | 3 Low Risk |
3 Low Risk |
3 Low Risk |
3 Low Risk |
3 Low Risk |
|
| 3 Low Risk |
3 Low Risk |
3 Low Risk |
3 Low Risk |
3 Low Risk |
||
| 3 Low Risk |
3 Low Risk |
3 Low Risk |
3 Low Risk |
3 Low Risk |
||
| 3 Low Risk |
4 Moderate Risk |
3 Low Risk |
3 Low Risk |
2 Low Risk |
||
| 2 Low Risk |
4 Moderate Risk |
3 Low Risk |
3 Low Risk |
2 Low Risk |
||
| Windsor | 3 Low Risk |
4 Moderate Risk |
3 Low Risk |
3 Low Risk |
3 Low Risk |
|
| 3 Low Risk |
4 Moderate Risk |
3 Low Risk |
3 Low Risk |
3 Low Risk |
||
| 3 Low Risk |
4 Moderate Risk |
3 Low Risk |
3 Low Risk |
3 Low Risk |
||
1. Forecast issued at: 6:00 AM EST Monday 22 December 2025
