Air Quality in Sainte-Catherine, Canada

Windy
8.3°C · 55.6% humidity
8.3°
Feels 2.7°
4
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
9 10pm
9
9
4 1am
5
6
7 4am
8
8
10 7am
9
8
8 10am
8
8
8 1pm
8
8
8 4pm
8
8
8 7pm
8
8
Station readings
5
4
2
3
CAMS model adj -16
25
25
25
25
25
25
25
25
25
27
25
24
24
24
24
24
24
24
24
24
24
24
24
24
AD 728×90

Air Quality Index Trend

45h · 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.

55.6%
Humidity
61.0 km/h
Wind WNW
1017.1 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
4
1.04 µg/m³
PM10▲
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Sainte-Catherine?

Temperature & Precipitation

PM2.5 Trend

45h · 1 station
PM2.51.04 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (5 stations within 25 km)
1.04
Median
2.56
Average
0.73
Low
4.1
High
PM2.5 µg/m³ · Model: 5.9 · Bias: +4.9

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

05-30
17.2° 8.3°
0.13 mm
05-31
22.2° 7.0°
6.31 mm
06-01
23.1° 15.5°
06-02
19.9° 9.8°
0.94 mm
06-03
22.1° 12.2°
06-04
20.8° 12.0°
3.25 mm
06-05
22.4° 10.9°
3.19 mm
Both models agree Avg diff: 3.9°C

Where are air quality stations near Sainte-Catherine?

2
canada-trois-rivières-notre-dame-rue-o
0.7 km PM2.5: 0.5 µg/m³
15
Trois-Rivières - secteur du Vieux-Trois-Rivières, Quebec, Canada
3.0 km PM2.5: 3.6 µg/m³
11
Trois-Rivières - secteur du Vieux-Trois-Rivières, Quebec, Canada
3.0 km PM2.5: 2.6 µg/m³
21
Trois-Rivières - secteur du Vieux-Trois-Rivières, Quebec, Canada
3.0 km PM2.5: 5.0 µg/m³
271
Trois-Rivières - secteur du Vieux-Trois-Rivières, Quebec, Canada
3.0 km PM2.5: 221.1 µg/m³
70
Bécancour - secteur de l'hôtel de ville, Quebec, Canada
3.3 km PM2.5: 21.1 µg/m³
3
Bécancour - secteur de l'hôtel de ville, Quebec, Canada
3.3 km PM2.5: 0.7 µg/m³
15
Bécancour - secteur de l'hôtel de ville, Quebec, Canada
3.3 km PM2.5: 3.6 µg/m³
30
Bécancour - secteur de l'hôtel de ville, Quebec, Canada
3.3 km PM2.5: 7.2 µg/m³
3
canada-trois-rivières-notre-dame-rue-east
6.2 km PM2.5: 0.7 µg/m³

What cities are near Sainte-Catherine?

15 Trois-Rivières 14 Shawinigan 10 Drummondville 14 Sorel-Tracy 9 Victoriaville 14 Joliette 35 Saint-Charles-Borromée 17 Saint-Hyacinthe 22 L'Assomption 25 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 2026-05-30T05:23 UTC.