Collingwood Air Quality Forecast - Today, Tomorrow
Air Quality Today
Today (10 October): Air quality in Collingwood is good. AQI, PM2.5, PM10, NO2, O3, SO2, CO, HCHO, and PM1 are good. Pollution peaks around 7:00 AM (PM2.5: 18.2/100).
Air Quality Tomorrow
Tomorrow (11 October 2026): Air quality in Collingwood is good. All pollutants stay as today. Pollution peaks around 12:00 PM (O3: 18.8/100).
Explore Forecasts
Pollen & Mold
Air Quality for Neighborhoods
Get More in Our App
Local pollen and air quality forecasts, interactive pollen maps and route profiles
Features and forecast availability vary by region.
Air Quality
Today - 10 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Good | 18.2/100 |
| PM2.5 (fine particles) | Good | 18.2/100 |
| PM10 (coarse particles) | Good | 16.0/100 |
| NO2 (nitrogen dioxide) | Good | 11.2/100 |
| O3 (ozone) | Good | 16.8/100 |
| SO2 (sulfur dioxide) | Good | 0.4/100 |
| CO (carbon monoxide) | Good | 0.5/100 |
| HCHO (formaldehyde) | Good | 1.7/100 |
| PM1 (ultrafine particles) | Good | 4.8/100 |
Tomorrow - 11 October
| Pollutant | Level | Value |
|---|---|---|
| AQI | Good | 18.8/100 |
| PM2.5 (fine particles) | Good | 15.3/100 |
| PM10 (coarse particles) | Good | 13.6/100 |
| NO2 (nitrogen dioxide) | Good | 15.5/100 |
| O3 (ozone) | Good | 18.8/100 |
| SO2 (sulfur dioxide) | Good | 0.4/100 |
| CO (carbon monoxide) | Good | 0.6/100 |
| HCHO (formaldehyde) | Good | 1.4/100 |
| PM1 (ultrafine particles) | Good | 8.5/100 |
Local Environmental Conditions
The center of Collingwood combines built-up streets with more open land, so local traffic matters, though emissions are less concentrated than in a city center. Breezes off the Georgian Bay usually help ventilate the area. Home heating, especially wood stoves and fireplaces, adds smoke and fine particles in the colder months. Parks and street trees provide a modest buffer against traffic pollution.
From July to August, strong sunshine and temperatures around 21°C drive ozone formation, with levels peaking in the afternoon. Later, cold spells from November to April, at around -5°C on average, are when smoke from home heating and traffic lingers longest. February is usually the windiest month, averaging about 20 km/h, which helps keep the air clean.
Get pollen & AQ on Strava
Follow your environmental exposure and performance with the free Airmine-Strava integration. See your pollen and air quality exposure for every Strava activity.
Resource Hub
Air quality forecast neighborhoods 1 neighborhood
Sports venues in Collingwood 2 sports venues
Frequently Asked Questions About Air Quality in Ontario
Is air quality bad in Collingwood right now?
On 10 October 2026, overall air quality in Collingwood is good. AQI is the main air quality indicator at 18.2/100. Pollution peaks around 7:00 AM (PM2.5: 18.2/100).
Will air quality be worse tomorrow in Collingwood?
On 11 October 2026, air quality conditions in Collingwood will be similar to today, with AQI forecast at good at 18.8/100. Pollution peaks around 12:00 PM (O3: 18.8/100).
When is air pollution at its worst in Collingwood?
From July to August, strong sunshine and temperatures around 21°C drive ozone formation, with levels peaking in the afternoon. Later, cold spells from November to April, at around -5°C on average, are when smoke from home heating and traffic lingers longest. February is usually the windiest month, averaging about 20 km/h, which helps keep the air clean.
Are air quality levels in Collingwood based on measurements or forecasts?
It is forecasts derived by downscaling forecasts provided by EU’s Copernicus Atmosphere Monitoring Service (CAMS) by taking into account local conditions such as traffic patterns. CAMS bases its forecast on satellite measurements of particles and chemical compounds in the atmosphere. Airmine’s services were developed with support from the European Space Agency (ESA)’s Business Applications and Space Solutions (BASS) team.
Why doesn’t the forecast always reflect wildfire impacts?
Airmine’s forecast uses CAMS (Copernicus Atmosphere Monitoring Service) as its background atmospheric model. While CAMS includes wildfire emissions, these are derived from satellite observations and are not available in real time. During rapidly evolving wildfire events, there may therefore be a delay before increased emissions are incorporated into the model. As a result, the forecast may temporarily underestimate PM₂.₅ and other pollutants associated with wildfire smoke.
During rapidly evolving wildfire events, CAMS may lag by approximately 1–2 days before increased wildfire emissions are fully represented, which can lead to temporary underestimation of PM₂.₅ concentrations in Airmine’s forecast.
Understanding the Scale
The 0–100 air quality scores represent risk levels, not direct air pollutant concentrations. Higher scores indicate higher risk.
Air Quality
| Good | 0-20 | Low air quality risk. Air quality is expected to be good, with low levels of pollution. |
| Fair | 20-40 | Generally low air quality risk. Air quality is expected to be acceptable, with some pollution present. |
| Moderate | 40-60 | Moderate air quality risk. Air pollution is elevated and air quality may be less favorable. |
| Poor | 60-80 | High air quality risk. Air pollution is high and air quality is expected to be poor. |
| Very Poor | 80-100 | Very high air quality risk. Air pollution is very high and air quality is expected to be very poor. |