Air Quality in Sainte-Thérèse, Canada

Windy
24.8°C · 57.4% humidity
24.8°
Feels 24.8°
81
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
2 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
76 10am
89
77
81 1pm
76
72
70 4pm
68
66
65 7pm
65
64
62 10pm
62
61
61 1am
61
60
60 4am
60
60
60 7am
60
60
Station readings
76
89
77
CAMS model adj +36
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

Sainte-Thérèse'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 Sainte-Thérèse is 1.7× the WHO 24-hour guideline of 15 µg/m³.

57.4%
Humidity
46.5 km/h
Wind ENE
1015.9 hPa
Pressure
12.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
81
26.22 µg/m³
PM10
25
27.45 µg/m³
050100150200300500

What is the weather forecast for Sainte-Thérèse?

Temperature & Precipitation

PM2.5 Trend

47h · 2 stations
PM2.526.22 µg/m³ ×1.7 WHO
Moderate
PM1027.45 µg/m³
Good
UV INDEX12.9
Extreme
AD 300×250
Station readings (2 stations within 25 km)
26.22
Median
24.52
Average
20.7
Low
28.33
High
PM2.5 µg/m³ · Model: 12.85 · Bias: -13.4

What is the 7-day forecast for Sainte-Thérèse?

07-21
24.8° 20.4°
07-22
23.5° 17.0°
07-23
18.3° 13.5°
5.19 mm
07-24
23.1° 12.9°
0.5 mm
07-25
20.2° 17.2°
12.13 mm
07-26
22.3° 16.0°
8.38 mm
07-27
26.4° 16.6°
2.06 mm
Both models agree Avg diff: 2.6°C

Where are air quality stations near Sainte-Thérèse?

34
Laval, Quebec, Canada
9.7 km PM2.5: 8.2 µg/m³
35
Laval, Quebec, Canada
9.7 km PM2.5: 8.4 µg/m³
15
Laval, Quebec, Canada
9.7 km PM2.5: 3.6 µg/m³
17
Terrebonne - secteur du parc Vaillant, Quebec, Canada
14.9 km PM2.5: 4.1 µg/m³
29
Terrebonne - secteur du parc Vaillant, Quebec, Canada
14.9 km PM2.5: 7.0 µg/m³
39
Terrebonne - secteur du parc Vaillant, Quebec, Canada
14.9 km PM2.5: 9.4 µg/m³
52
Terrebonne - secteur du parc Vaillant, Quebec, Canada
14.9 km PM2.5: 12.6 µg/m³
76
Montréal, Ahuntsic Live Meteo Station
15.1 km 84.0°C 52.8% RH PM2.5: 24.0 µg/m³ PM10: 24.0 µg/m³
80
canada-montreal-rue-ida-steinberg
24.5 km PM2.5: 25.9 µg/m³
–
canada-montreal-rue-leclaire
25.0 km PM2.5: 0.0 µg/m³

What cities are near Sainte-Thérèse?

81 Boisbriand 85 Blainville 85 Saint-Louis-de-Terrebonne 89 Saint-Eustache 83 Val-des-Arbres 89 Deux-Montagnes 85 Laval 83 Chomedey 85 Laval-des-Rapides 84 Duvernay
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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 2026-07-21T17:24 UTC.