Air Quality in Sainte-Catherine, Canada

Partly Cloudy
1.0°C · 51.6% humidity
1.0°
Feels -4.9°
11
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast
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Station readings
6
0
16

Air Quality Index Trend

30h · 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.

51.6%
Humidity
26.5 km/h
Wind SSW
1029.3 hPa
Pressure
0.0
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5
11
2.59 µg/m³
PM10▲
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Sainte-Catherine?

Temperature & Precipitation

PM2.5 Trend

30h · 1 station
PM2.52.59 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX0.0
Low
Station readings (5 stations within 25 km)
2.59
Median
5.33
Average
2.25
Low
7.2
High
PM2.5 µg/m³ · Model: 8.2 · Bias: +5.6

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

10-21
11.2° 1.0°
10-22
10.9° 1.7°
11.19 mm
10-23
13.8° 4.7°
0.31 mm
10-24
13.3° 3.4°
0.5 mm
10-25
17.1° 2.1°
7.19 mm
10-26
7.2° 3.4°
6.75 mm
10-27
8.1° 1.7°
1.06 mm
Both models agree Avg diff: 4.4°C

Where are air quality stations near Sainte-Catherine?

15
canada-trois-rivières-notre-dame-rue-o
0.7 km PM2.5: 3.6 µg/m³
19
Trois-Rivières - secteur du Vieux-Trois-Rivières, Quebec, Canada
3.0 km PM2.5: 4.6 µg/m³
19
Trois-Rivières - secteur du Vieux-Trois-Rivières, Quebec, Canada
3.0 km PM2.5: 4.6 µg/m³
22
Trois-Rivières - secteur du Vieux-Trois-Rivières, Quebec, Canada
3.0 km PM2.5: 5.3 µg/m³
23
Trois-Rivières - secteur du Vieux-Trois-Rivières, Quebec, Canada
3.0 km PM2.5: 5.5 µg/m³
20
Bécancour - secteur de l'hôtel de ville, Quebec, Canada
3.3 km PM2.5: 4.8 µg/m³
23
Bécancour - secteur de l'hôtel de ville, Quebec, Canada
3.3 km PM2.5: 5.5 µg/m³
20
Bécancour - secteur de l'hôtel de ville, Quebec, Canada
3.3 km PM2.5: 4.8 µg/m³
14
Trois-Rivières - secteur du sanctuaire, Quebec, Canada
7.7 km PM2.5: 3.4 µg/m³
19
Trois-Rivières - secteur du sanctuaire, Quebec, Canada
7.7 km PM2.5: 4.6 µg/m³

What cities are near Sainte-Catherine?

23 Trois-Rivières 29 Shawinigan 14 Drummondville 37 Sorel-Tracy 10 Victoriaville 37 Joliette 17 Saint-Charles-Borromée 38 Saint-Hyacinthe 17 L'Assomption 19 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 2026-10-21T00:39 UTC.