Air Quality in Saint-Constant, Canada

Rain
15.7°C · 59.1% humidity
15.7°
Feels 15.7°
37
Good
Air quality is satisfactory. Enjoy outdoor activities.
4 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
25 4pm
29
51
37 7pm
37
36
36 10pm
37
37
37 1am
37
37
37 4am
37
37
37 7am
37
36
36 10am
36
37
37 1pm
37
37
Station readings
25
29
51
51
CAMS model adj +12
27
25
25
25
25
24
24
25
25
25
25
25
25
25
25
25
25
24
24
24
25
25
25
25
AD 728×90

Air Quality Index Trend

46h · 3 stn

Saint-Constant's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

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▲
37
8.79 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Saint-Constant?

Temperature & Precipitation

PM2.5 Trend

46h · 3 stations
PM2.58.79 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (4 stations within 25 km)
8.79
Median
10.29
Average
1.68
Low
27.0
High
PM2.5 µg/m³ · Model: 5.9 · Bias: -2.9

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

05-29
15.9° 9.4°
2.69 mm
05-30
19.4° 9.0°
8.69 mm
05-31
23.7° 6.7°
1.94 mm
06-01
25.5° 18.6°
06-02
18.4° 11.1°
2.25 mm
06-03
27.3° 15.7°
06-04
22.5° 13.8°
0.88 mm
Both models agree Avg diff: 4.1°C

Where are air quality stations near Saint-Constant?

62
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
11.3 km PM2.5: 17.3 µg/m³
14
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
11.3 km PM2.5: 3.4 µg/m³
68
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
11.3 km PM2.5: 20.2 µg/m³
15
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
11.3 km PM2.5: 3.6 µg/m³
56
Montreal
15.8 km PM2.5: 14.5 µg/m³
5
Rue Bourret
20.7 km PM2.5: 1.1 µg/m³ PM10: 1.1 µg/m³
–
canada-montreal-rue-leclaire
21.1 km PM2.5: 0.0 µg/m³
11
canada-montreal-rue-ida-steinberg
21.8 km PM2.5: 2.6 µg/m³
102
Montréal, Ahuntsic Live Meteo Station
22.7 km 60.5°C 79.8% RH PM2.5: 36.0 µg/m³ PM10: 43.0 µg/m³

What cities are near Saint-Constant?

38 Sainte-Catherine 33 Candiac 32 La Prairie 41 Desmarchais-Crawford 44 Ville-Émard 40 Verdun 36 Ile-des-Soeurs 45 Saint-Henri 44 Le Sud-Ouest 31 Brossard
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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 2026-05-29T23:35 UTC.