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Air quality in Thunder Bay
Air quality index (AQI) and PM2.5 air pollution in Thunder Bay
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Thunder Bay Air Quality Map
Real-time Thunder Bay air pollution map
AIR QUALITY DATA CONTRIBUTORS
2 Contributors
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Pollen
What is the pollen count in Thunder Bay today?
 | Index | Low | |
 | Tree pollen | Low | |
 | Grass pollen | None | |
 | Weed pollen | None |
Source: tomorrow.io
Weather
What is the current weather in Thunder Bay?
| Weather | Broken clouds |
| Temperature | 50°F |
| Humidity | 95% |
| Wind | 3 mp/h |
| Pressure | 29.9 Hg |
live aqi city ranking
Real-time Canada city ranking
| # | city | US AQI |
|---|---|---|
| 1 |  Thunder Bay, Ontario | 60 |
| 2 | Guelph, Ontario | 57 |
| 3 | Toronto, Ontario | 57 |
| 4 | Kitchener, Ontario | 56 |
| 5 | Winnipeg, Manitoba | 56 |
| 6 | Maniwaki, Quebec | 54 |
| 7 | Brampton, Ontario | 52 |
| 8 | Mississauga, Ontario | 52 |
| 9 | Hamilton, Ontario | 51 |
| 10 | London, Ontario | 51 |
(local time)
SEE WORLD AQI RANKING
3D animated air pollution map
live Thunder Bay aqi ranking
Real-time Thunder Bay air quality ranking
| # | station | US AQI |
|---|---|---|
| 1 | Bears' Cave | 77 |
| 2 | Simon Fraser Drive | 25 |
| 3 | Ontario Ministry of the Environment Thunder Bay | 22 |
(local time)
SEE WORLD AQI RANKING
US AQI
60
live AQI index
Moderate
Overview
What is the current air quality in Thunder Bay?
| Air pollution level | Air quality index | Main pollutant |
|---|---|---|
| Moderate | 60 US AQI | PM2.5 |
| Pollutants | Concentration | |
|---|---|---|
| PM2.5 | 13.9µg/m³ | |
!
PM2.5
x2.8
PM2.5 concentration in Thunder Bay is currently 2.8 times the WHO annual air quality guideline value
Health Recommendations
What is the current air quality in Thunder Bay?
 | Sensitive groups should reduce outdoor exercise |
 | Close your windows to avoid dirty outdoor air GET A MONITOR |
 | Sensitive groups should wear a mask outdoors GET A MASK |
 | Sensitive groups should run an air purifier GET AN AIR PURIFIER |
Forecast
Thunder Bay air quality index (AQI) forecast
| Day | Pollution level | Weather | Temperature | Wind |
|---|---|---|---|---|
| Wednesday, May 29 | Good 32 AQI US  |  | 59° 42.8° |  8.9 mp/h |
| Thursday, May 30 | Good 26 AQI US |  | 64.4° 44.6° | 8.9 mp/h |
| Friday, May 31 | Good 35 AQI US | | 57.2° 46.4° | 4.5 mp/h |
| Today | Moderate 60 AQI US | 90% | 57.2° 46.4° | 4.5 mp/h |
| Sunday, Jun 2 | Good 44 AQI US | | 60.8° 44.6° | 8.9 mp/h |
| Monday, Jun 3 | Moderate 52 AQI US | 100% | 57.2° 42.8° | 8.9 mp/h |
| Tuesday, Jun 4 | Good 47 AQI US | 100% | 59° 51.8° | 6.7 mp/h |
| Wednesday, Jun 5 | Good 37 AQI US | 100% | 55.4° 50° | 8.9 mp/h |
| Thursday, Jun 6 | Good 9 AQI US | 90% | 53.6° 44.6° | 15.7 mp/h |
| Friday, Jun 7 | Good 8 AQI US | 50% | 50° 44.6° | 11.2 mp/h |
Interested in hourly forecast? Get the app
News
The latest air quality news and resources.
How to best protect from air pollution?
Thunder Bay air quality data attribution
2Contributors
- AirGradient
1 station
Corporate Contributor
- 1 Anonymous contributor
1 station
Anonymous Contributor
3 Data sources
Data validated and calibrated by IQAirWhere is the cleanest air quality in Thunder Bay?
AQI US, Metric