Air Quality in Sainte-Catherine, Canada

Windy
12.6°C · 79.6% humidity
12.6°
Feels 12.6°
17
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
6 4pm
19
13
17 7pm
15
17
24 10pm
24
24
24 1am
24
24
24 4am
24
24
24 7am
24
17
15 10am
15
15
15 1pm
15
15
Station readings
6
19
13
18
CAMS model adj -10
24
24
24
25
25
27
34
34
34
34
34
34
34
34
34
34
34
27
25
25
25
25
25
25
AD 728×90

Air Quality Index Trend

48h · 1 stn

Sainte-Catherine's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

79.6%
Humidity
48.3 km/h
Wind SSW
997.7 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
17
4.07 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Sainte-Catherine?

Temperature & Precipitation

PM2.5 Trend

48h · 1 station
PM2.54.07 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (5 stations within 25 km)
4.07
Median
6.24
Average
3.8
Low
9.1
High
PM2.5 µg/m³ · Model: 6.0 · Bias: +1.9

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

06-08
15.4° 6.0°
3.25 mm
06-09
25.9° 10.9°
0.13 mm
06-10
15.5° 8.1°
1.31 mm
06-11
22.3° 8.0°
06-12
17.6° 15.0°
2.94 mm
06-13
27.1° 14.8°
13.37 mm
06-14
24.1° 8.5°
10.13 mm
Both models agree Avg diff: 7.3°C

Where are air quality stations near Sainte-Catherine?

13
canada-trois-rivières-notre-dame-rue-o
0.7 km PM2.5: 3.1 µg/m³
63
Trois-Rivières - secteur du Vieux-Trois-Rivières, Quebec, Canada
3.0 km PM2.5: 17.8 µg/m³
11
Trois-Rivières - secteur du Vieux-Trois-Rivières, Quebec, Canada
3.0 km PM2.5: 2.6 µg/m³
13
Trois-Rivières - secteur du Vieux-Trois-Rivières, Quebec, Canada
3.0 km PM2.5: 3.1 µg/m³
97
Trois-Rivières - secteur du Vieux-Trois-Rivières, Quebec, Canada
3.0 km PM2.5: 34.0 µg/m³
153
Bécancour - secteur de l'hôtel de ville, Quebec, Canada
3.3 km PM2.5: 59.4 µg/m³
23
Bécancour - secteur de l'hôtel de ville, Quebec, Canada
3.3 km PM2.5: 5.5 µg/m³
14
Bécancour - secteur de l'hôtel de ville, Quebec, Canada
3.3 km PM2.5: 3.4 µg/m³
34
Bécancour - secteur de l'hôtel de ville, Quebec, Canada
3.3 km PM2.5: 8.2 µg/m³
18
canada-trois-rivières-notre-dame-rue-east
6.2 km PM2.5: 4.3 µg/m³

What cities are near Sainte-Catherine?

26 Trois-Rivières 28 Shawinigan 25 Drummondville 28 Sorel-Tracy 25 Victoriaville 28 Joliette 38 Saint-Charles-Borromée 28 Saint-Hyacinthe 39 L'Assomption 39 Repentigny
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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 2026-06-08T23:24 UTC.