Air Quality in Le Vieux-Longueuil, Canada

Windy
15.8°C · 76.3% humidity
15.8°
Feels 15.8°
35
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
30 2pm
35
35
23 5pm
16
16
16 8pm
16
16
16 11pm
16
16
29 2am
16
16
16 5am
16
16
16 8am
16
16
16 11am
29
54
Station readings
30
35
35
23
CAMS model adj -21
50
50
50
50
37
37
37
37
37
37
37
37
50
37
37
37
37
37
37
37
37
37
50
75
AD 728×90

PM2.5 Trend (24h)

25h · 3 stations
76.3%
Humidity
100.9 km/h
Wind SW
1022.3 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

What is the weather forecast for Le Vieux-Longueuil?

Temperature & Precipitation

PM2.58.49 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (2 stations within 25 km)
8.49
Median
8.49
Average
6.65
Low
10.33
High
PM2.5 µg/m³ · Model: 10.4 · Bias: +1.9

What is the 7-day forecast for Le Vieux-Longueuil?

04-09
15.8° 0.7°
04-10
18.8° 5.8°
04-11
16.0° 8.4°
4.25 mm
04-12
10.6° 4.1°
04-13
15.4° 8.3°
19.69 mm
04-14
17.5° 13.8°
5.31 mm
04-15
17.0° 10.5°
4.31 mm
Both models agree Avg diff: 3.5°C

Where are air quality stations near Le Vieux-Longueuil?

–
canada-montreal-rue-leclaire
2.6 km PM2.5: 0.0 µg/m³
23
canada-montreal-rue-ida-steinberg
3.3 km PM2.5: 5.6 µg/m³
25
Brossard - secteur du parc Sorbonne, Quebec, Canada
10.2 km
34
Brossard - secteur du parc Sorbonne, Quebec, Canada
10.2 km
32
Brossard - secteur du parc Sorbonne, Quebec, Canada
10.2 km
24
Brossard - secteur du parc Sorbonne, Quebec, Canada
10.2 km
25
Brossard - secteur du parc Sorbonne, Quebec, Canada
10.2 km
36
Brossard - secteur du parc Sorbonne, Quebec, Canada
10.2 km
30
Brossard - secteur du parc Sorbonne, Quebec, Canada
10.2 km
31
Brossard - secteur du parc Sorbonne, Quebec, Canada
10.2 km

What cities are near Le Vieux-Longueuil?

35 Longueuil 35 Mercier–Hochelaga-Maisonneuve 28 Laflèche 35 Le Plateau-Mont-Royal 35 Ville-Marie 28 Greenfield Park 35 Montréal 35 Mile End 35 Rosemont–La Petite-Patrie 35 Villeray–Saint-Michel–Parc-Extension

Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T17:38 UTC.