What is the air quality in L'Assomption today?

The current Air Quality Index (AQI) in L'Assomption is 17 (Good). PM2.5 concentration is 4.11 µg/m³.

What is the temperature in L'Assomption right now?

The current temperature in L'Assomption is 2.4°C (feels like -4.2°C). Humidity is 47.0% and wind speed is 39.3 km/h.

Is it safe to go outside in L'Assomption?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in L'Assomption, Canada

Clear

2.4°C · 47.0% humidity

2.4°

Feels -4.2°

Good

Air quality is satisfactory. Enjoy outdoor activities.

2 stations

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

45h · 9 stn

View full history →

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

47.0%

Humidity

39.3 km/h

Wind WSW

1029.7 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5

4.11 µg/m³

PM10▲

41.2 µg/m³

050100150200300500

What is the weather forecast for L'Assomption?

Temperature & Precipitation

PM2.5 Trend

45h · 9 stations

PM2.54.11 µg/m³ ✓ WHO

Good

PM1041.2 µg/m³

Good

UV INDEX0.0

Low

Station readings (2 stations within 25 km)

4.11

Median

4.1

Average

3.4

Low

4.8

High

PM2.5 µg/m³ · Model: 13.5 · Bias: +9.4

What is the 7-day forecast for L'Assomption?

10-21

13.7° 2.4°

10-22

11.9° 2.8°

10.13 mm

10-23

14.3° 6.5°

1.13 mm

10-24

13.5° 3.1°

0.38 mm

10-25

18.6° 6.0°

13.25 mm

10-26

7.4° 3.9°

2.25 mm

10-27

9.4° 3.1°

1.5 mm

Both models agree Avg diff: 4.8°C

Where are air quality stations near L'Assomption?

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canada-montreal-18e-avenue

20.4 km PM2.5: 0.0 µg/m³

Saint-Jean-Baptiste, Montreal, Canada

21.0 km PM2.5: 7.2 µg/m³

Saint-Jean-Baptiste, Montreal, Canada

21.0 km PM2.5: 5.8 µg/m³

Saint-Jean-Baptiste, Montreal, Canada

21.0 km PM2.5: 7.2 µg/m³

Saint-Jean-Baptiste, Montreal, Canada

21.0 km PM2.5: 6.7 µg/m³

Saint-Jean-Baptiste, Montreal, Canada

21.0 km PM2.5: 5.8 µg/m³

Saint-Jean-Baptiste, Montreal, Canada

21.0 km PM2.5: 6.2 µg/m³

Saint-Jean-Baptiste, Montreal, Canada

21.0 km PM2.5: 4.6 µg/m³

Saint-Jean-Baptiste, Montreal, Canada

21.0 km PM2.5: 9.1 µg/m³

Rivière-des-prairies, Montreal, Canada

22.1 km PM2.5: 3.8 µg/m³

What cities are near L'Assomption?

19 Repentigny 17 Mascouche 21 Varennes 37 Joliette 15 Terrebonne 20 Rivière-des-Prairies–Pointe-aux-Trembles 17 Saint-Charles-Borromée 20 Boucherville 14 Saint-Lin-Laurentides 24 Sainte-Julie

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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 2026-10-21T00:34 UTC.