What is the air quality in Saint-Jérôme today?

The current Air Quality Index (AQI) in Saint-Jérôme is 17 (Good). PM2.5 concentration is 4.1 µg/m³.

What is the temperature in Saint-Jérôme right now?

The current temperature in Saint-Jérôme is 0.6°C (feels like -5.7°C). Humidity is 54.2% and wind speed is 30.3 km/h.

Is it safe to go outside in Saint-Jérôme?

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

Air Quality in Saint-Jérôme, Canada

Partly Cloudy

0.6°C · 54.2% humidity

0.6°

Feels -5.7°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

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Air Quality Index Trend

46h · 15 stn

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

54.2%

Humidity

30.3 km/h

Wind WNW

1030.0 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5

4.1 µg/m³

PM10▲

27.4 µg/m³

050100150200300500

What is the weather forecast for Saint-Jérôme?

Temperature & Precipitation

PM2.5 Trend

46h · 15 stations

PM2.54.1 µg/m³ ✓ WHO

Good

PM1027.4 µg/m³

Good

UV INDEX0.0

Low

What is the 7-day forecast for Saint-Jérôme?

10-20

7.1° 0.2°

0.06 mm

10-21

13.1° 0.6°

10-22

12.2° 1.9°

8.81 mm

10-23

12.8° 5.7°

0.62 mm

10-24

12.1° 2.2°

1.25 mm

10-25

15.0° 5.2°

12.81 mm

10-26

7.4° 3.9°

0.75 mm

Both models agree Avg diff: 4.6°C

Where are air quality stations near Saint-Jérôme?

Laval, Quebec, Canada

29.7 km PM2.5: 6.5 µg/m³

Laval, Quebec, Canada

29.7 km PM2.5: 5.5 µg/m³

Laval, Quebec, Canada

29.7 km PM2.5: 2.4 µg/m³

Laval, Quebec, Canada

29.7 km PM2.5: 4.3 µg/m³

What cities are near Saint-Jérôme?

5 Mirabel 22 Blainville 23 Saint-Louis-de-Terrebonne 22 Saint-Lin-Laurentides 21 Sainte-Thérèse 21 Boisbriand 19 Saint-Eustache 19 Deux-Montagnes 22 Terrebonne 24 Mascouche

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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 2026-10-20T22:42 UTC.