Air Quality in Châteauguay, Canada

Windy
11.8°C · 88.7% humidity
11.8°
Feels 11.8°
14
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast Calibrated
20 7pm
21
22
19 10pm
19
19
19 1am
19
19
19 4am
19
19
19 7am
19
31
31 10am
31
31
44 1pm
31
31
31 4pm
31
44
Station readings
20
21
22
CAMS model adj -6
25
25
25
25
25
25
25
25
25
25
25
25
25
25
37
37
37
37
50
37
37
37
37
50
AD 728×90

PM2.5 Trend (24h)

26h · 4 stations
88.7%
Humidity
66.9 km/h
Wind SW
1022.9 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Temperature & Precipitation

PM2.53.33 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
3.33
Median
3.33
Average
3.33
Low
3.33
High
PM2.5 µg/m³ · Model: 8.9 · Bias: +5.6
04-09
14.3° 0.2°
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

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T22:12 UTC.