Air Quality in Saint-Eustache, Canada

Windy
26.0°C · 50.4% humidity
26.0°
Feels 26.0°
89
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
2 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
87 10am
97
84
89 1pm
83
79
76 4pm
74
73
72 7pm
71
70
68 10pm
68
68
67 1am
67
66
66 4am
66
66
66 7am
66
66
Station readings
87
97
84
CAMS model adj +42
27
27
27
27
27
27
27
27
27
27
27
27
25
25
25
25
25
24
24
24
24
24
24
24
AD 728×90

Air Quality Index Trend

47h · 2 stn

Saint-Eustache'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-Eustache is 2.0× the WHO 24-hour guideline of 15 µg/m³.

50.4%
Humidity
45.0 km/h
Wind ENE
1015.3 hPa
Pressure
12.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
89
30.28 µg/m³
PM10
25
27.45 µg/m³
050100150200300500

What is the weather forecast for Saint-Eustache?

Temperature & Precipitation

PM2.5 Trend

47h · 2 stations
PM2.530.28 µg/m³ ×2.0 WHO
Moderate
PM1027.45 µg/m³
Good
UV INDEX12.9
Extreme
AD 300×250
Station readings (2 stations within 25 km)
30.28
Median
30.96
Average
28.33
Low
33.59
High
PM2.5 µg/m³ · Model: 12.85 · Bias: -17.4

What is the 7-day forecast for Saint-Eustache?

07-21
26.0° 20.5°
07-22
24.8° 16.9°
07-23
18.7° 13.4°
5.69 mm
07-24
23.1° 12.9°
2.12 mm
07-25
19.5° 16.9°
12.25 mm
07-26
22.3° 15.6°
8.25 mm
07-27
26.2° 17.7°
1.13 mm
Both models agree Avg diff: 2.6°C

Where are air quality stations near Saint-Eustache?

35
Laval, Quebec, Canada
15.7 km PM2.5: 8.4 µg/m³
34
Laval, Quebec, Canada
15.7 km PM2.5: 8.2 µg/m³
15
Laval, Quebec, Canada
15.7 km PM2.5: 3.6 µg/m³
76
Montréal, Ahuntsic Live Meteo Station
18.2 km 84.0°C 52.8% RH PM2.5: 24.0 µg/m³ PM10: 24.0 µg/m³
99
Hudson
23.7 km PM2.5: 34.8 µg/m³ PM10: 40.1 µg/m³
29
Terrebonne - secteur du parc Vaillant, Quebec, Canada
24.5 km PM2.5: 7.0 µg/m³
39
Terrebonne - secteur du parc Vaillant, Quebec, Canada
24.5 km PM2.5: 9.4 µg/m³
52
Terrebonne - secteur du parc Vaillant, Quebec, Canada
24.5 km PM2.5: 12.6 µg/m³
17
Terrebonne - secteur du parc Vaillant, Quebec, Canada
24.5 km PM2.5: 4.1 µg/m³

What cities are near Saint-Eustache?

89 Deux-Montagnes 90 L'Île-Bizard–Sainte-Geneviève 81 Boisbriand 81 Pierrefonds-Roxboro 81 Dollard-Des Ormeaux 81 Sainte-Thérèse 85 Blainville 91 Pierrefonds 83 Chomedey 90 Kirkland
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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 2026-07-21T17:18 UTC.