Air Quality in Châteauguay, Canada

Drizzle
16.3°C · 94.4% humidity
16.3°
Feels 16.3°
15
Good
Air quality is satisfactory. Enjoy outdoor activities.
8 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
9 5am
14
32
15 8am
17
17
17 11am
17
17
17 2pm
17
17
17 5pm
17
17
17 8pm
17
17
17 11pm
17
17
17 2am
17
17
Station readings
9
14
32
CAMS model adj -7
25
25
25
25
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
24
AD 728×90

Air Quality Index Trend

47h · 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.

94.4%
Humidity
54.9 km/h
Wind NE
1009.6 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
15
3.55 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Châteauguay?

Temperature & Precipitation

PM2.5 Trend

47h · 2 stations
PM2.53.55 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (8 stations within 25 km)
3.55
Median
3.6
Average
3.1
Low
4.3
High
PM2.5 µg/m³ · Model: 5.9 · Bias: +2.3

What is the 7-day forecast for Châteauguay?

09-05
25.5° 14.8°
3.44 mm
09-06
23.0° 14.4°
8.69 mm
09-07
21.1° 13.3°
09-08
18.8° 12.6°
5.87 mm
09-09
23.9° 12.2°
0.62 mm
09-10
20.1° 13.4°
12.62 mm
09-11
26.1° 12.0°
0.25 mm
Both models agree Avg diff: 4.1°C

Where are air quality stations near Châteauguay?

13
Sainte-Anne-de-Bellevue, Montreal, Canada
14.8 km PM2.5: 3.1 µg/m³
24
Sainte-Anne-de-Bellevue, Montreal, Canada
14.8 km PM2.5: 5.8 µg/m³
14
Sainte-Anne-de-Bellevue, Montreal, Canada
14.8 km PM2.5: 3.4 µg/m³
20
Sainte-Anne-de-Bellevue, Montreal, Canada
14.8 km PM2.5: 4.8 µg/m³
13
Sainte-Anne-de-Bellevue, Montreal, Canada
14.8 km PM2.5: 3.1 µg/m³
24
Roberval, York, Montreal, Canada
15.8 km PM2.5: 5.8 µg/m³
24
Roberval, York, Montreal, Canada
15.8 km PM2.5: 5.8 µg/m³
22
Roberval, York, Montreal, Canada
15.8 km PM2.5: 5.3 µg/m³
23
Roberval, York, Montreal, Canada
15.8 km PM2.5: 5.5 µg/m³
19
Roberval, York, Montreal, Canada
15.8 km PM2.5: 4.6 µg/m³

What cities are near Châteauguay?

15 Dorval 15 Pointe-Claire 14 Beaconsfield 15 Côte-Saint-Luc 14 Kirkland 15 Sainte-Catherine 15 Dollard-Des Ormeaux 15 Ville-Émard 14 Pierrefonds 14 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 2026-09-05T12:11 UTC.