Air Quality in Saint-Laurent, Canada

Windy
19.4°C · 49.1% humidity
19.4°
Feels 19.4°
60
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
2 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
59 4pm
58
60
60 7pm
67
67
67 10pm
67
67
67 1am
67
67
67 4am
67
67
67 7am
67
60
60 10am
60
60
58 1pm
58
58
Station readings
59
58
60
CAMS model adj +33
27
25
25
27
34
34
34
34
34
34
34
34
34
34
34
34
34
27
27
27
27
25
25
25
AD 728×90

Air Quality Index Trend

47h · 2 stn

Saint-Laurent'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 Saint-Laurent is 1.1× the WHO 24-hour guideline of 15 µg/m³.

49.1%
Humidity
68.5 km/h
Wind WSW
1011.3 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
60
16.45 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Saint-Laurent?

Temperature & Precipitation

PM2.5 Trend

47h · 2 stations
PM2.516.45 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)
16.45
Median
17.09
Average
16.0
Low
18.18
High
PM2.5 µg/m³ · Model: 6.25 · Bias: -10.2

What is the 7-day forecast for Saint-Laurent?

08-03
24.8° 15.8°
08-04
28.7° 16.8°
1.88 mm
08-05
27.3° 15.1°
1.0 mm
08-06
25.9° 19.1°
2.5 mm
08-07
22.2° 16.1°
1.06 mm
08-08
25.2° 17.7°
08-09
31.4° 19.5°
1.13 mm
Both models agree Avg diff: 4.0°C

Where are air quality stations near Saint-Laurent?

59
Montréal, Ahuntsic Live Meteo Station
6.3 km 88.5°C 58.6% RH PM2.5: 16.0 µg/m³ PM10: 16.0 µg/m³
26
Roberval, York, Montreal, Canada
7.6 km PM2.5: 6.2 µg/m³
33
Roberval, York, Montreal, Canada
7.6 km PM2.5: 7.9 µg/m³
68
Roberval, York, Montreal, Canada
7.6 km PM2.5: 20.2 µg/m³
47
Roberval, York, Montreal, Canada
7.6 km PM2.5: 11.3 µg/m³
19
Roberval, York, Montreal, Canada
7.6 km PM2.5: 4.6 µg/m³
49
Roberval, York, Montreal, Canada
7.6 km PM2.5: 11.8 µg/m³
38
Roberval, York, Montreal, Canada
7.6 km PM2.5: 9.1 µg/m³
33
Roberval, York, Montreal, Canada
7.6 km PM2.5: 7.9 µg/m³
20
Roberval, York, Montreal, Canada
7.6 km PM2.5: 4.8 µg/m³

What cities are near Saint-Laurent?

60 Mont-Royal 61 Snowdon 61 Côte-Saint-Luc 60 Parc-Extension 59 Cartierville 61 Outremont 61 Notre-Dame-de-Grâce 62 Westmount 62 Mile End 61 Rosemont–La Petite-Patrie
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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 2026-08-07T23:46 UTC.