Air Quality in Saint-Basile-le-Grand, Canada

Windy
18.6°C · 55.1% humidity
18.6°
Feels 18.6°
64
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
1 station

Nearby Monitoring Stations

AQI Forecast Calibrated
76 11pm
76
76
64 2am
67
70
72 5am
93
94
94 8am
68
68
68 11am
69
69
67 2pm
67
67
67 5pm
67
67
69 8pm
69
69
Station readings
77
77
72
CAMS model adj +42
34
34
34
34
34
34
34
54
54
54
27
27
27
27
27
25
25
25
25
25
25
27
27
27
AD 728×90

Air Quality Index Trend

47h · 1 stn

Saint-Basile-le-Grand's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration. Current PM2.5 concentration in Saint-Basile-le-Grand is 1.2× the WHO 24-hour guideline of 15 µg/m³.

55.1%
Humidity
49.5 km/h
Wind WSW
1011.1 hPa
Pressure
2.2
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
64
18.18 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Saint-Basile-le-Grand?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station
PM2.518.18 µg/m³ ×1.2 WHO
Moderate
PM1013.7 µg/m³
Good
UV INDEX2.2
Moderate
AD 300×250
Station readings (1 station within 25 km)
18.18
Median
18.18
Average
18.18
Low
18.18
High
PM2.5 µg/m³ · Model: 7.35 · Bias: -10.8

What is the 7-day forecast for Saint-Basile-le-Grand?

08-03
23.6° 16.0°
08-04
28.6° 15.0°
4.06 mm
08-05
28.4° 16.1°
0.94 mm
08-06
26.1° 18.9°
3.19 mm
08-07
25.8° 14.8°
3.0 mm
08-08
24.4° 16.3°
08-09
31.6° 17.7°
0.62 mm
Both models agree Avg diff: 3.6°C

Where are air quality stations near Saint-Basile-le-Grand?

12
Vallée-du-Richelieu, Quebec, Canada
9.5 km PM2.5: 2.9 µg/m³
29
Vallée-du-Richelieu, Quebec, Canada
9.5 km PM2.5: 7.0 µg/m³
28
Vallée-du-Richelieu, Quebec, Canada
9.5 km PM2.5: 6.7 µg/m³
28
Vallée-du-Richelieu, Quebec, Canada
9.5 km PM2.5: 6.7 µg/m³
28
Vallée-du-Richelieu, Quebec, Canada
9.5 km PM2.5: 6.7 µg/m³
21
Vallée-du-Richelieu, Quebec, Canada
9.5 km PM2.5: 5.0 µg/m³
26
Vallée-du-Richelieu, Quebec, Canada
9.5 km PM2.5: 6.2 µg/m³
30
Vallée-du-Richelieu, Quebec, Canada
9.5 km PM2.5: 7.2 µg/m³
31
Vallée-du-Richelieu, Quebec, Canada
9.5 km PM2.5: 7.4 µg/m³
28
Vallée-du-Richelieu, Quebec, Canada
9.5 km PM2.5: 6.7 µg/m³

What cities are near Saint-Basile-le-Grand?

64 Saint-Bruno-de-Montarville 64 Sainte-Julie 31 Beloeil 31 Mont-Saint-Hilaire 55 Chambly 61 Saint-Hubert 63 Boucherville 63 Longueuil 62 Laflèche 61 Greenfield Park
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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 2026-08-08T06:44 UTC.