Air Quality in Saint-Jean-sur-Richelieu, Canada

Partly Cloudy
24.6°C · 67.7% humidity
24.6°
Feels 24.6°
55
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
1 station

Nearby Monitoring Stations

AQI Forecast Calibrated
42 10am
42
42
55 1pm
53
52
51 4pm
51
50
50 7pm
43
42
42 10pm
40
40
39 1am
39
39
39 4am
39
39
39 7am
39
39
Station readings
43
61
58
CAMS model adj +15
27
27
27
34
34
34
34
34
34
34
27
27
27
25
25
24
24
24
24
24
24
24
24
24
AD 728×90

Air Quality Index Trend

47h · 1 stn

Saint-Jean-sur-Richelieu's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

67.7%
Humidity
35.9 km/h
Wind NNE
1015.4 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
55
14.11 µg/m³
PM10
31
34.3 µg/m³
050100150200300500

What is the weather forecast for Saint-Jean-sur-Richelieu?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station
PM2.514.11 µg/m³ ✓ WHO
Moderate
PM1034.3 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
Station readings (1 station within 25 km)
14.11
Median
14.11
Average
14.11
Low
14.11
High
PM2.5 µg/m³ · Model: 17.65 · Bias: +3.5

What is the 7-day forecast for Saint-Jean-sur-Richelieu?

07-21
25.2° 19.0°
07-22
22.7° 16.0°
3.0 mm
07-23
20.3° 13.4°
4.75 mm
07-24
22.0° 11.7°
1.94 mm
07-25
20.3° 17.5°
33.12 mm
07-26
21.0° 15.9°
5.5 mm
07-27
26.5° 18.5°
0.44 mm
Both models agree Avg diff: 2.3°C

Where are air quality stations near Saint-Jean-sur-Richelieu?

58
Rue Bourret
4.1 km PM2.5: 15.3 µg/m³ PM10: 15.3 µg/m³
24
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
22.0 km PM2.5: 5.8 µg/m³
193
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
22.0 km PM2.5: 136.8 µg/m³
132
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
22.0 km PM2.5: 48.1 µg/m³
37
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
22.0 km PM2.5: 8.9 µg/m³
53
Montreal
31.9 km PM2.5: 13.1 µg/m³
25
Montreal
31.9 km PM2.5: 6.0 µg/m³
40
Montreal
31.9 km PM2.5: 9.6 µg/m³
40
Montreal
31.9 km PM2.5: 9.6 µg/m³

What cities are near Saint-Jean-sur-Richelieu?

60 Chambly 67 Candiac 69 La Prairie 70 Brossard 70 Saint-Hubert 69 Saint-Constant 69 Saint-Basile-le-Grand 71 Greenfield Park 69 Saint-Bruno-de-Montarville 71 Laflèche
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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 2026-07-21T17:27 UTC.