Air Quality in Mont-Saint-Hilaire, Canada

Rain
14.8°C · 68.0% humidity
14.8°
Feels 14.8°
23
Good
Air quality is satisfactory. Enjoy outdoor activities.
1 station

Nearby Monitoring Stations

AQI Forecast
24 5pm
24
25
23 8pm
24
24
25 11pm
25
27
27 2am
27
27
27 5am
27
25
25 8am
25
25
25 11am
25
24
24 2pm
25
25
AD 728×90

Air Quality Index Trend

48h · 3 stn

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

68.0%
Humidity
59.7 km/h
Wind NW
1012.4 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
23
5.5 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Mont-Saint-Hilaire?

Temperature & Precipitation

PM2.5 Trend

48h · 3 stations
PM2.55.5 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (1 station within 25 km)
5.5
Median
5.5
Average
5.5
Low
5.5
High
PM2.5 µg/m³ · Model: 6.0 · Bias: +0.5

What is the 7-day forecast for Mont-Saint-Hilaire?

05-30
18.2° 8.8°
8.69 mm
05-31
22.8° 6.6°
1.44 mm
06-01
23.9° 16.0°
06-02
18.7° 10.8°
2.19 mm
06-03
26.1° 13.8°
06-04
21.5° 13.3°
0.69 mm
06-05
22.9° 11.9°
12.19 mm
Both models agree Avg diff: 4.1°C

Where are air quality stations near Mont-Saint-Hilaire?

24
Vallée-du-Richelieu, Quebec, Canada
3.6 km PM2.5: 5.8 µg/m³
98
Vallée-du-Richelieu, Quebec, Canada
3.6 km PM2.5: 34.4 µg/m³
15
Vallée-du-Richelieu, Quebec, Canada
3.6 km PM2.5: 3.6 µg/m³
15
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
25.8 km PM2.5: 3.6 µg/m³
108
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
25.8 km PM2.5: 38.3 µg/m³
14
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
25.8 km PM2.5: 3.4 µg/m³
68
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
25.8 km PM2.5: 20.2 µg/m³
–
canada-montreal-18e-avenue
26.3 km PM2.5: 0.0 µg/m³

What cities are near Mont-Saint-Hilaire?

23 Beloeil 25 Saint-Basile-le-Grand 25 Sainte-Julie 26 Saint-Bruno-de-Montarville 23 Chambly 30 Saint-Hubert 23 Saint-Hyacinthe 28 Boucherville 29 Longueuil 30 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 2026-05-30T00:40 UTC.