Air Quality in Châteauguay, Canada

Windy
12.1°C · 75.7% humidity
12.1°
Feels 12.1°
38
Good
Air quality is satisfactory. Enjoy outdoor activities.
8 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
10 4pm
11
12
38 7pm
32
26
23 10pm
20
18
17 1am
16
14
13 4am
13
13
12 7am
12
13
13 10am
13
13
13 1pm
13
13
Station readings
10
11
12
10
CAMS model adj -12
24
24
24
24
25
25
25
25
25
25
25
24
24
24
24
24
24
25
25
25
25
25
25
25
AD 728×90

Air Quality Index Trend

48h · 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.

75.7%
Humidity
49.1 km/h
Wind SW
998.0 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
38
9.0 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Châteauguay?

Temperature & Precipitation

PM2.5 Trend

48h · 2 stations
PM2.59.0 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (8 stations within 25 km)
9.0
Median
8.73
Average
2.67
Low
11.0
High
PM2.5 µg/m³ · Model: 5.9 · Bias: -3.1

What is the 7-day forecast for Châteauguay?

06-08
18.1° 9.5°
0.06 mm
06-09
22.6° 11.6°
1.63 mm
06-10
19.6° 12.5°
15.56 mm
06-11
23.9° 9.5°
06-12
22.8° 15.7°
11.0 mm
06-13
24.2° 17.5°
11.0 mm
06-14
25.6° 13.0°
7.06 mm
Both models agree Avg diff: 6.6°C

Where are air quality stations near Châteauguay?

8
Montréal, Ahuntsic Live Meteo Station
20.2 km 85.8°C 31.4% RH PM2.5: 2.0 µg/m³ PM10: 4.0 µg/m³
56
Montreal
20.6 km PM2.5: 14.5 µg/m³
15
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
22.9 km PM2.5: 3.6 µg/m³
27
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
22.9 km PM2.5: 6.5 µg/m³
155
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
22.9 km PM2.5: 63.2 µg/m³
114
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
22.9 km PM2.5: 40.8 µg/m³
151
Laval, Quebec, Canada
25.0 km PM2.5: 55.5 µg/m³
124
Laval, Quebec, Canada
25.0 km PM2.5: 44.8 µg/m³
2
Laval, Quebec, Canada
25.0 km PM2.5: 0.5 µg/m³
–
canada-montreal-rue-leclaire
25.6 km PM2.5: 0.0 µg/m³

What cities are near Châteauguay?

35 Dorval 38 Pointe-Claire 39 Beaconsfield 37 Côte-Saint-Luc 38 Kirkland 37 Sainte-Catherine 34 Dollard-Des Ormeaux 42 Ville-Émard 39 Pierrefonds 34 Saint-Constant
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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 2026-06-08T23:20 UTC.