Air Quality in Westmount, Canada

Windy
19.6°C · 45.4% humidity
19.6°
Feels 19.6°
62
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
2 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
67 9pm
69
69
62 12am
64
65
66 3am
67
68
68 6am
68
69
62 9am
62
62
62 12pm
60
60
60 3pm
60
60
60 6pm
60
60
Station readings
67
69
CAMS model adj +35
34
34
34
34
34
34
34
34
34
34
34
34
27
27
27
27
25
25
25
25
25
25
25
25
AD 728×90

Air Quality Index Trend

46h · 3 stn

Westmount's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Westmount is 1.1× the WHO 24-hour guideline of 15 µg/m³.

45.4%
Humidity
59.0 km/h
Wind WSW
1011.0 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
62
17.08 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Westmount?

Temperature & Precipitation

PM2.5 Trend

46h · 3 stations
PM2.517.08 µg/m³ ×1.1 WHO
Moderate
PM1013.7 µg/m³
Good
UV INDEX2.2
Moderate
AD 300×250
Station readings (2 stations within 25 km)
17.08
Median
17.09
Average
16.0
Low
18.18
High
PM2.5 µg/m³ · Model: 7.1 · Bias: -10.0

What is the 7-day forecast for Westmount?

08-03
24.8° 15.9°
08-04
29.4° 17.3°
1.69 mm
08-05
28.6° 16.2°
0.75 mm
08-06
27.6° 19.2°
1.75 mm
08-07
25.1° 15.7°
1.88 mm
08-08
25.4° 18.2°
08-09
32.2° 19.1°
0.62 mm
Both models agree Avg diff: 4.0°C

Where are air quality stations near Westmount?

20
Roberval, York, Montreal, Canada
2.5 km PM2.5: 4.8 µg/m³
19
Roberval, York, Montreal, Canada
2.5 km PM2.5: 4.6 µg/m³
38
Roberval, York, Montreal, Canada
2.5 km PM2.5: 9.1 µg/m³
68
Roberval, York, Montreal, Canada
2.5 km PM2.5: 20.2 µg/m³
26
Roberval, York, Montreal, Canada
2.5 km PM2.5: 6.2 µg/m³
36
Roberval, York, Montreal, Canada
2.5 km PM2.5: 8.6 µg/m³
38
Roberval, York, Montreal, Canada
2.5 km PM2.5: 9.1 µg/m³
44
Roberval, York, Montreal, Canada
2.5 km PM2.5: 10.6 µg/m³
28
St-Dominique, Montreal, Canada
4.1 km PM2.5: 6.7 µg/m³
25
St-Dominique, Montreal, Canada
4.1 km PM2.5: 6.0 µg/m³

What cities are near Westmount?

61 Notre-Dame-de-Grâce 62 Le Sud-Ouest 62 Saint-Henri 61 Snowdon 62 Ville-Marie 62 Montréal 62 Verdun 61 Outremont 62 Ville-Émard 62 Desmarchais-Crawford
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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 2026-08-08T04:12 UTC.