What is the air quality in Saint-Laurent today?

The current Air Quality Index (AQI) in Saint-Laurent is 18 (Good). PM2.5 concentration is 4.4 µg/m³.

What is the temperature in Saint-Laurent right now?

The current temperature in Saint-Laurent is 4.9°C (feels like 0.4°C). Humidity is 39.4% and wind speed is 24.3 km/h.

Is it safe to go outside in Saint-Laurent?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Saint-Laurent, Canada

Clear

4.9°C · 39.4% humidity

4.9°

Feels 0.4°

Good

Air quality is satisfactory. Enjoy outdoor activities.

13 stations

Nearby Monitoring Stations

AQI Forecast

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Station readings

Air Quality Index Trend

46h · 2 stn

View full history →

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.

39.4%

Humidity

24.3 km/h

Wind W

1029.8 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5

4.4 µg/m³

PM10▲

54.9 µg/m³

050100150200300500

What is the weather forecast for Saint-Laurent?

Temperature & Precipitation

PM2.5 Trend

46h · 2 stations

PM2.54.4 µg/m³ ✓ WHO

Good

PM1054.9 µg/m³

Moderate

UV INDEX0.0

Low

Station readings (13 stations within 25 km)

4.4

Median

5.24

Average

1.24

Low

7.2

High

PM2.5 µg/m³ · Model: 27.1 · Bias: +22.7

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

10-20

7.5° 4.9°

0.62 mm

10-21

14.5° 4.9°

10-22

12.3° 4.4°

9.25 mm

10-23

14.3° 7.3°

3.13 mm

10-24

14.5° 4.6°

0.75 mm

10-25

17.7° 7.4°

17.69 mm

10-26

9.1° 5.8°

0.62 mm

Both models agree Avg diff: 4.5°C

Where are air quality stations near Saint-Laurent?

Montréal, Ahuntsic Live Meteo Station

6.3 km 59.9°C 49.5% RH PM2.5: 1.0 µg/m³ PM10: 2.0 µg/m³

Roberval, York, Montreal, Canada

7.6 km PM2.5: 3.1 µg/m³

Roberval, York, Montreal, Canada

7.6 km PM2.5: 6.2 µg/m³

Roberval, York, Montreal, Canada

7.6 km PM2.5: 7.4 µg/m³

Roberval, York, Montreal, Canada

7.6 km PM2.5: 5.3 µg/m³

Roberval, York, Montreal, Canada

7.6 km PM2.5: 6.5 µg/m³

Roberval, York, Montreal, Canada

7.6 km PM2.5: 5.3 µg/m³

Roberval, York, Montreal, Canada

7.6 km PM2.5: 5.8 µg/m³

Roberval, York, Montreal, Canada

7.6 km PM2.5: 7.0 µg/m³

Roberval, York, Montreal, Canada

7.6 km PM2.5: 3.8 µg/m³

What cities are near Saint-Laurent?

18 Mont-Royal 21 Snowdon 20 Côte-Saint-Luc 18 Parc-Extension 14 Cartierville 20 Outremont 22 Notre-Dame-de-Grâce 22 Westmount 21 Mile End 21 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 2026-10-20T23:41 UTC.