Air Quality in Châteauguay, Canada

Windy
11.8°C · 88.7% humidity
11.8°
Feels 11.8°
17
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast
25 10pm
27
23
26 1am
25
25
25 4am
25
25
25 7am
25
37
37 10am
37
37
50 1pm
37
37
37 4pm
37
50
50 7pm
50
50
Station readings
25
27
23
26
CAMS model
25
25
25
25
25
25
25
25
25
25
25
37
37
37
37
50
37
37
37
37
50
50
50
50
AD 728×90

PM2.5 Trend (24h)

26h · 4 stations
88.7%
Humidity
66.9 km/h
Wind SW
1022.9 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Châteauguay?

Temperature & Precipitation

PM2.54.0 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (1 station within 25 km)
4.0
Median
4.0
Average
4.0
Low
4.0
High
PM2.5 µg/m³ · Model: 10.4 · Bias: +6.4

What is the 7-day forecast for Châteauguay?

04-10
17.6° 5.8°
04-11
15.0° 7.3°
4.63 mm
04-12
10.1° 3.8°
04-13
14.6° 7.7°
22.56 mm
04-14
16.5° 13.0°
5.31 mm
04-15
15.6° 10.3°
4.5 mm
04-16
8.0° 1.1°
0.19 mm
Both models agree Avg diff: 4.5°C

Where are air quality stations near Châteauguay?

21
Montréal, Ahuntsic Live Meteo Station
20.2 km 59.7°C 36.0% RH PM2.5: 5.0 µg/m³ PM10: 8.0 µg/m³
25
Brossard - secteur du parc Sorbonne, Quebec, Canada
22.2 km
34
Brossard - secteur du parc Sorbonne, Quebec, Canada
22.2 km
32
Brossard - secteur du parc Sorbonne, Quebec, Canada
22.2 km
30
Brossard - secteur du parc Sorbonne, Quebec, Canada
22.2 km
36
Brossard - secteur du parc Sorbonne, Quebec, Canada
22.2 km
24
Brossard - secteur du parc Sorbonne, Quebec, Canada
22.2 km
29
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
22.9 km
30
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
22.9 km
31
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
22.9 km

What cities are near Châteauguay?

20 Dorval 17 Pointe-Claire 29 Beaconsfield 20 Côte-Saint-Luc 29 Kirkland 17 Sainte-Catherine 20 Dollard-Des Ormeaux 20 Ville-Émard 29 Pierrefonds 17 Saint-Constant

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-10T01:49 UTC.