Air Quality in Sainte-Julie, Canada

Windy
25.2°C · 56.3% humidity
25.2°
Feels 25.2°
69
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
1 station

Nearby Monitoring Stations

AQI Forecast Calibrated
56 10am
56
63
69 1pm
67
66
65 4pm
65
64
64 7pm
64
56
56 10pm
56
54
54 1am
54
53
53 4am
53
53
53 7am
53
53
Station readings
59
68
80
CAMS model adj +29
27
27
34
34
34
34
34
34
34
34
34
27
27
27
25
25
25
24
24
24
24
24
24
24
AD 728×90

Air Quality Index Trend

47h · 1 stn

Sainte-Julie'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-Julie is 1.4× the WHO 24-hour guideline of 15 µg/m³.

56.3%
Humidity
42.6 km/h
Wind NE
1015.9 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
69
20.7 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Sainte-Julie?

Temperature & Precipitation

PM2.5 Trend

47h · 1 station
PM2.520.7 µg/m³ ×1.4 WHO
Moderate
PM1020.55 µg/m³
Good
UV INDEX14.9
Extreme
AD 300×250
Station readings (1 station within 25 km)
20.7
Median
20.7
Average
20.7
Low
20.7
High
PM2.5 µg/m³ · Model: 13.7 · Bias: -7.0

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

07-21
25.2° 20.8°
07-22
23.9° 16.9°
07-23
18.7° 13.5°
6.13 mm
07-24
23.2° 12.5°
0.69 mm
07-25
21.1° 17.8°
10.19 mm
07-26
22.6° 16.2°
9.44 mm
07-27
26.9° 16.7°
1.81 mm
Both models agree Avg diff: 2.4°C

Where are air quality stations near Sainte-Julie?

34
Vallée-du-Richelieu, Quebec, Canada
10.4 km PM2.5: 8.2 µg/m³
69
Vallée-du-Richelieu, Quebec, Canada
10.4 km PM2.5: 20.7 µg/m³
1
Vallée-du-Richelieu, Quebec, Canada
10.4 km PM2.5: 0.2 µg/m³
–
canada-montreal-18e-avenue
15.1 km PM2.5: 0.0 µg/m³
–
canada-montreal-rue-leclaire
15.7 km PM2.5: 0.0 µg/m³
80
canada-montreal-rue-ida-steinberg
15.8 km PM2.5: 25.9 µg/m³
24
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
18.9 km PM2.5: 5.8 µg/m³
193
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
18.9 km PM2.5: 136.8 µg/m³
132
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
18.9 km PM2.5: 48.1 µg/m³
37
Longueuil - secteur du parc Océanie (Brossard), Quebec, Canada
18.9 km PM2.5: 8.9 µg/m³

What cities are near Sainte-Julie?

69 Saint-Bruno-de-Montarville 69 Saint-Basile-le-Grand 72 Boucherville 54 Beloeil 70 Saint-Hubert 54 Mont-Saint-Hilaire 72 Longueuil 74 Varennes 71 Laflèche 70 Le Vieux-Longueuil
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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 2026-07-21T17:25 UTC.