Air Quality in Le Sud-Ouest, Canada

Clear
26.5°C · 43.8% humidity
26.5°
Feels 26.5°
77
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
2 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
68 10am
80
77
77 1pm
74
71
69 4pm
68
67
67 7pm
66
59
59 10pm
58
56
56 1am
56
56
55 4am
55
55
55 7am
55
55
Station readings
68
80
77
CAMS model adj +31
27
27
34
34
34
34
34
34
34
34
34
27
27
27
25
25
25
25
24
24
24
24
24
24
AD 728×90

Air Quality Index Trend

47h · 3 stn

Le Sud-Ouest'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 Le Sud-Ouest is 1.6× the WHO 24-hour guideline of 15 µg/m³.

43.8%
Humidity
37.8 km/h
Wind ENE
1015.4 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
77
24.32 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Le Sud-Ouest?

Temperature & Precipitation

PM2.5 Trend

47h · 3 stations
PM2.524.32 µg/m³ ×1.6 WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
Station readings (2 stations within 25 km)
24.32
Median
24.52
Average
20.7
Low
28.33
High
PM2.5 µg/m³ · Model: 13.7 · Bias: -10.6

What is the 7-day forecast for Le Sud-Ouest?

07-21
26.5° 20.8°
07-22
25.3° 18.2°
0.19 mm
07-23
20.5° 13.5°
5.75 mm
07-24
23.6° 14.5°
1.13 mm
07-25
20.5° 18.6°
12.81 mm
07-26
22.8° 16.0°
7.56 mm
07-27
27.8° 18.4°
0.88 mm
Both models agree Avg diff: 2.6°C

Where are air quality stations near Le Sud-Ouest?

40
Montreal
5.0 km PM2.5: 9.6 µg/m³
53
Montreal
5.0 km PM2.5: 13.1 µg/m³
25
Montreal
5.0 km PM2.5: 6.0 µg/m³
40
Montreal
5.0 km PM2.5: 9.6 µg/m³
37
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
10.0 km PM2.5: 8.9 µg/m³
24
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
10.0 km PM2.5: 5.8 µg/m³
193
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
10.0 km PM2.5: 136.8 µg/m³
132
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
10.0 km PM2.5: 48.1 µg/m³
–
canada-montreal-rue-leclaire
10.4 km PM2.5: 0.0 µg/m³
80
canada-montreal-rue-ida-steinberg
10.9 km PM2.5: 25.9 µg/m³

What cities are near Le Sud-Ouest?

77 Saint-Henri 77 Westmount 78 Notre-Dame-de-Grâce 76 Verdun 77 Ville-Émard 77 Desmarchais-Crawford 75 Ville-Marie 73 Ile-des-Soeurs 79 Snowdon 76 Montréal
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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 2026-07-21T17:25 UTC.