Air Quality in Sainte-Catherine, Canada

Clear
5.1°C · 39.1% humidity
5.1°
Feels 1.1°
30
Good
Air quality is satisfactory. Enjoy outdoor activities.
11 stations

Nearby Monitoring Stations

AQI Forecast
6 6pm
40
88
— 9pm
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—
— 12am
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—
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Station readings
6
40
88

Air Quality Index Trend

46h · 3 stn

Sainte-Catherine's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

39.1%
Humidity
21.5 km/h
Wind WSW
1029.8 hPa
Pressure
0.0
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
30
7.18 µg/m³
PM10▲
38
41.2 µg/m³
050100150200300500

What is the weather forecast for Sainte-Catherine?

Temperature & Precipitation

PM2.5 Trend

46h · 3 stations
PM2.57.18 µg/m³ ✓ WHO
Good
PM1041.2 µg/m³
Good
UV INDEX0.0
Low
Station readings (11 stations within 25 km)
7.18
Median
7.73
Average
3.26
Low
24.95
High
PM2.5 µg/m³ · Model: 19.2 · Bias: +12.0
Both models agree Avg diff: 4.4°C

Where are air quality stations near Sainte-Catherine?

13
Roberval, York, Montreal, Canada
7.2 km PM2.5: 3.1 µg/m³
26
Roberval, York, Montreal, Canada
7.2 km PM2.5: 6.2 µg/m³
19
Roberval, York, Montreal, Canada
7.2 km PM2.5: 4.6 µg/m³
24
Roberval, York, Montreal, Canada
7.2 km PM2.5: 5.8 µg/m³
54
Roberval, York, Montreal, Canada
7.2 km PM2.5: 13.5 µg/m³
29
Roberval, York, Montreal, Canada
7.2 km PM2.5: 7.0 µg/m³
22
Roberval, York, Montreal, Canada
7.2 km PM2.5: 5.3 µg/m³
22
Roberval, York, Montreal, Canada
7.2 km PM2.5: 5.3 µg/m³
27
Roberval, York, Montreal, Canada
7.2 km PM2.5: 6.5 µg/m³
31
Roberval, York, Montreal, Canada
7.2 km PM2.5: 7.4 µg/m³

What cities are near Sainte-Catherine?

32 Saint-Constant 28 Desmarchais-Crawford 31 Candiac 28 Ville-Émard 27 Verdun 31 La Prairie 28 Ile-des-Soeurs 27 Saint-Henri 27 Le Sud-Ouest 28 Notre-Dame-de-Grâce
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Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-10-21T01:11 UTC.