Air Quality in Sainte-Catherine, Canada

Rain
15.7°C · 59.1% humidity
15.7°
Feels 15.7°
26
Good
Air quality is satisfactory. Enjoy outdoor activities.
4 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
57 3pm
28
32
26 6pm
29
32
31 9pm
33
33
36 12am
36
36
37 3am
37
37
35 6am
35
35
35 9am
35
35
35 12pm
35
35
Station readings
57
28
32
56
CAMS model adj +10
24
24
25
25
25
27
24
25
25
27
27
27
27
27
27
25
25
25
25
25
25
25
25
25
AD 728×90

Air Quality Index Trend

46h · 3 stn

Sainte-Catherine'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
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
26
6.34 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Sainte-Catherine?

Temperature & Precipitation

PM2.5 Trend

46h · 3 stations
PM2.56.34 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX2.2
Moderate
AD 300×250
Station readings (4 stations within 25 km)
6.34
Median
7.92
Average
1.93
Low
18.33
High
PM2.5 µg/m³ · Model: 5.9 · Bias: -0.4

What is the 7-day forecast for Sainte-Catherine?

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 Sainte-Catherine?

62
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
10.1 km PM2.5: 17.3 µg/m³
14
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
10.1 km PM2.5: 3.4 µg/m³
68
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
10.1 km PM2.5: 20.2 µg/m³
15
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
10.1 km PM2.5: 3.6 µg/m³
56
Montreal
12.3 km PM2.5: 14.5 µg/m³
–
canada-montreal-rue-leclaire
17.7 km PM2.5: 0.0 µg/m³
16
canada-montreal-rue-ida-steinberg
18.3 km PM2.5: 3.9 µg/m³
99
Montréal, Ahuntsic Live Meteo Station
18.8 km 59.9°C 79.9% RH PM2.5: 35.0 µg/m³ PM10: 38.0 µg/m³
4
Rue Bourret
23.3 km PM2.5: 1.0 µg/m³ PM10: 1.0 µg/m³
2
Laval, Quebec, Canada
25.1 km PM2.5: 0.5 µg/m³

What cities are near Sainte-Catherine?

27 Saint-Constant 22 Desmarchais-Crawford 26 Candiac 23 Ville-Émard 21 Verdun 26 La Prairie 23 Ile-des-Soeurs 22 Saint-Henri 21 Le Sud-Ouest 25 Notre-Dame-de-Grâce
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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 2026-05-29T22:37 UTC.