Air Quality in Châteauguay, Canada

Rain
15.2°C · 59.3% humidity
15.2°
Feels 15.2°
39
Good
Air quality is satisfactory. Enjoy outdoor activities.
9 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
40 5pm
75
75
39 8pm
42
44
47 11pm
49
50
50 2am
51
51
51 5am
52
52
52 8am
51
51
51 11am
52
52
52 2pm
52
52
Station readings
40
75
75
12
CAMS model adj +27
25
25
25
25
24
24
25
25
25
25
25
25
25
25
25
25
24
24
24
25
25
25
25
25
AD 728×90

Air Quality Index Trend

44h · 2 stn

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

59.3%
Humidity
62.4 km/h
Wind NW
1012.9 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
39
9.26 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Châteauguay?

Temperature & Precipitation

PM2.5 Trend

44h · 2 stations
PM2.59.26 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (9 stations within 25 km)
9.26
Median
9.05
Average
4.8
Low
24.67
High
PM2.5 µg/m³ · Model: 5.9 · Bias: -3.4

What is the 7-day forecast for Châteauguay?

05-30
20.0° 9.1°
9.38 mm
05-31
23.3° 6.6°
2.94 mm
06-01
24.7° 17.7°
06-02
18.1° 10.7°
1.63 mm
06-03
26.3° 15.6°
06-04
21.9° 13.7°
0.88 mm
06-05
24.0° 12.8°
6.94 mm
Both models agree Avg diff: 4.1°C

Where are air quality stations near Châteauguay?

12
Montréal, Ahuntsic Live Meteo Station
20.2 km 57.1°C 82.6% RH PM2.5: 3.0 µg/m³ PM10: 5.0 µg/m³
56
Montreal
20.6 km PM2.5: 14.5 µg/m³
14
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
22.9 km PM2.5: 3.4 µg/m³
68
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
22.9 km PM2.5: 20.2 µg/m³
15
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
22.9 km PM2.5: 3.6 µg/m³
108
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
22.9 km PM2.5: 38.3 µg/m³
36
Laval, Quebec, Canada
25.0 km PM2.5: 8.6 µg/m³
2
Laval, Quebec, Canada
25.0 km PM2.5: 0.5 µg/m³
134
Laval, Quebec, Canada
25.0 km PM2.5: 48.9 µg/m³
–
canada-montreal-rue-leclaire
25.6 km PM2.5: 0.0 µg/m³

What cities are near Châteauguay?

40 Dorval 39 Pointe-Claire 35 Beaconsfield 40 Côte-Saint-Luc 37 Kirkland 32 Sainte-Catherine 41 Dollard-Des Ormeaux 34 Ville-Émard 35 Pierrefonds 32 Saint-Constant
Get AQI alerts for Châteauguay

Notify me when air quality reaches:

Free · No account · Unsubscribe any time

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-05-30T00:39 UTC.