Air Quality in Saint-Louis-de-Terrebonne, Canada

Windy
24.8°C · 57.4% humidity
24.8°
Feels 24.8°
85
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
1 station

Nearby Monitoring Stations

AQI Forecast Calibrated
74 10am
87
77
85 1pm
80
76
74 4pm
72
70
69 7pm
69
61
61 10pm
61
58
58 1am
58
58
57 4am
57
57
57 7am
57
57
Station readings
74
87
77
CAMS model adj +33
27
27
34
34
34
34
34
34
34
34
34
27
27
27
25
25
25
25
24
24
24
24
24
24
AD 728×90

Air Quality Index Trend

47h · 2 stn

Saint-Louis-de-Terrebonne'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-Louis-de-Terrebonne is 1.9× the WHO 24-hour guideline of 15 µg/m³.

57.4%
Humidity
46.5 km/h
Wind ENE
1015.9 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
85
28.33 µg/m³
PM10
25
27.45 µg/m³
050100150200300500

What is the weather forecast for Saint-Louis-de-Terrebonne?

Temperature & Precipitation

PM2.5 Trend

47h · 2 stations
PM2.528.33 µg/m³ ×1.9 WHO
Moderate
PM1027.45 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
Station readings (1 station within 25 km)
28.33
Median
28.33
Average
28.33
Low
28.33
High
PM2.5 µg/m³ · Model: 13.7 · Bias: -14.6

What is the 7-day forecast for Saint-Louis-de-Terrebonne?

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 Saint-Louis-de-Terrebonne?

29
Terrebonne - secteur du parc Vaillant, Quebec, Canada
9.8 km PM2.5: 7.0 µg/m³
17
Terrebonne - secteur du parc Vaillant, Quebec, Canada
9.8 km PM2.5: 4.1 µg/m³
52
Terrebonne - secteur du parc Vaillant, Quebec, Canada
9.8 km PM2.5: 12.6 µg/m³
39
Terrebonne - secteur du parc Vaillant, Quebec, Canada
9.8 km PM2.5: 9.4 µg/m³
34
Laval, Quebec, Canada
12.1 km PM2.5: 8.2 µg/m³
15
Laval, Quebec, Canada
12.1 km PM2.5: 3.6 µg/m³
35
Laval, Quebec, Canada
12.1 km PM2.5: 8.4 µg/m³
76
Montréal, Ahuntsic Live Meteo Station
18.4 km 84.0°C 52.8% RH PM2.5: 24.0 µg/m³ PM10: 24.0 µg/m³
–
canada-montreal-18e-avenue
22.8 km PM2.5: 0.0 µg/m³
80
canada-montreal-rue-ida-steinberg
25.2 km PM2.5: 25.9 µg/m³

What cities are near Saint-Louis-de-Terrebonne?

81 Sainte-Thérèse 85 Blainville 81 Boisbriand 78 Terrebonne 81 Saint-Vincent-de-Paul 83 Val-des-Arbres 77 Mascouche 84 Duvernay 85 Laval 80 Montréal-Nord
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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 2026-07-21T17:28 UTC.