What is the air quality in Saint-Jérôme today?

The current Air Quality Index (AQI) in Saint-Jérôme is 18 (Good). PM2.5 concentration is 4.15 µg/m³.

What is the temperature in Saint-Jérôme right now?

The current temperature in Saint-Jérôme is 15.5°C (feels like 15.5°C). Humidity is 77.8% and wind speed is 37.1 km/h.

Is it safe to go outside in Saint-Jérôme?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.7 (Low).

Air Quality in Saint-Jérôme, Canada

Cloudy

15.5°C · 77.8% humidity

15.5°

Feels 15.5°

Good

Air quality is satisfactory. Enjoy outdoor activities.

Calibrated model

Nearby Monitoring Stations

AQI Forecast

24 5am

18 8am

22 11am

23 2pm

24 5pm

24 8pm

24 11pm

24 2am

Air Quality Index Trend

45h · 14 stn

View full history →

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.

77.8%

Humidity

37.1 km/h

Wind NNE

1010.1 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

4.15 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Saint-Jérôme?

Temperature & Precipitation

PM2.5 Trend

45h · 14 stations

PM2.54.15 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

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

09-05

24.3° 14.0°

1.81 mm

09-06

21.9° 12.7°

18.19 mm

09-07

18.9° 12.6°

09-08

17.8° 12.0°

10.0 mm

09-09

23.9° 11.1°

0.19 mm

09-10

20.8° 10.8°

19.0 mm

09-11

26.0° 10.1°

0.06 mm

Both models agree Avg diff: 3.8°C

Where are air quality stations near Saint-Jérôme?

Laval, Quebec, Canada

29.7 km PM2.5: 6.0 µg/m³

Laval, Quebec, Canada

29.7 km PM2.5: 7.9 µg/m³

Laval, Quebec, Canada

29.7 km PM2.5: 4.1 µg/m³

Laval, Quebec, Canada

29.7 km PM2.5: 4.3 µg/m³

What cities are near Saint-Jérôme?

25 Mirabel 16 Blainville 16 Saint-Louis-de-Terrebonne 17 Saint-Lin-Laurentides 16 Sainte-Thérèse 16 Boisbriand 16 Saint-Eustache 16 Deux-Montagnes 17 Terrebonne 16 Mascouche

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ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

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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 2026-09-05T12:11 UTC.