Air Quality in Le Vieux-Longueuil, Canada

Windy
15.8°C · 76.3% humidity
15.8°
Feels 15.8°
39
Good
Air quality is satisfactory. Enjoy outdoor activities.
2 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
30 2pm
35
35
31 5pm
18
18
18 8pm
18
18
18 11pm
18
18
31 2am
18
18
18 5am
18
18
18 8am
18
18
18 11am
31
56
Station readings
30
35
35
CAMS model adj -19
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)

24h · 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

PM2.59.27 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (2 stations within 25 km)
9.27
Median
9.27
Average
7.21
Low
11.33
High
PM2.5 µg/m³ · Model: 10.4 · Bias: +1.1

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
32
canada-montreal-rue-ida-steinberg
3.3 km PM2.5: 7.8 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?

39 Longueuil 39 Mercier–Hochelaga-Maisonneuve 30 Laflèche 39 Le Plateau-Mont-Royal 39 Ville-Marie 30 Greenfield Park 39 Montréal 39 Mile End 39 Rosemont–La Petite-Patrie 39 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 2026-04-09T17:00 UTC.