Air Quality in Montréal, Canada

Rain
15.7°C · 59.1% humidity
15.7°
Feels 15.7°
161
Unhealthy
Everyone should reduce prolonged outdoor exertion.
11 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
60 6pm
59
12
161 9pm
126
101
84 12am
71
62
55 3am
50
47
42 6am
40
39
38 9am
38
37
37 12pm
37
36
36 3pm
36
36
Station readings
60
59
12
13
CAMS model adj +11
25
25
27
24
25
25
27
27
27
27
27
27
25
25
25
25
25
25
25
25
25
25
25
25
AD 728×90

Air Quality Index Trend

46h · 2 stn

Montréal'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 Montréal is 5.0× the WHO 24-hour guideline of 15 µg/m³.

59.1%
Humidity
57.6 km/h
Wind NW
1012.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
161
75.18 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Montréal?

Temperature & Precipitation

PM2.5 Trend

46h · 2 stations
PM2.575.18 µg/m³ ×5.0 WHO
Unhealthy
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (11 stations within 25 km)
75.18
Median
16.16
Average
2.88
Low
107.8
High
PM2.5 µg/m³ · Model: 5.8 · Bias: -69.4
Both models agree Avg diff: 4.4°C

Where are air quality stations near Montréal?

56
Montreal
2.6 km PM2.5: 14.5 µg/m³
–
canada-montreal-rue-leclaire
6.8 km PM2.5: 0.0 µg/m³
13
canada-montreal-rue-ida-steinberg
7.2 km PM2.5: 3.1 µg/m³
–
Montréal, Ahuntsic Live Meteo Station
8.5 km 52.1°C 84.6% RH PM2.5: 0.0 µg/m³ PM10: 0.0 µg/m³
15
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
11.9 km PM2.5: 3.6 µg/m³
68
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
11.9 km PM2.5: 20.2 µg/m³
14
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
11.9 km PM2.5: 3.4 µg/m³
108
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
11.9 km PM2.5: 38.3 µg/m³
36
Laval, Quebec, Canada
14.6 km PM2.5: 8.6 µg/m³
2
Laval, Quebec, Canada
14.6 km PM2.5: 0.5 µg/m³

What cities are near Montréal?

164 Ville-Marie 126 Mile End 123 Outremont 114 Le Plateau-Mont-Royal 84 Westmount 81 Rosemont–La Petite-Patrie 43 Le Sud-Ouest 74 Notre-Dame-de-Grâce 80 Parc-Extension 85 Snowdon
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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 2026-05-30T01:32 UTC.