What is the air quality in Saint-Hyacinthe today?

The current Air Quality Index (AQI) in Saint-Hyacinthe is 12 (Good). PM2.5 concentration is 2.9 µg/m³.

What is the temperature in Saint-Hyacinthe right now?

The current temperature in Saint-Hyacinthe is 16.0°C (feels like 16.0°C). Humidity is 94.4% and wind speed is 44.7 km/h.

Is it safe to go outside in Saint-Hyacinthe?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 2.2 (Moderate).

Air Quality in Saint-Hyacinthe, Canada

Drizzle

16.0°C · 94.4% humidity

16.0°

Feels 16.0°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast

24 6am

12 9am

20 12pm

22 3pm

23 6pm

24 9pm

24 12am

24 3am

Air Quality Index Trend

45h · 12 stn

View full history →

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

94.4%

Humidity

44.7 km/h

Wind NNE

1009.7 hPa

Pressure

2.2

UV Moderate

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5

2.9 µg/m³

PM10▲

13.7 µg/m³

050100150200300500

What is the weather forecast for Saint-Hyacinthe?

Temperature & Precipitation

PM2.5 Trend

45h · 12 stations

PM2.52.9 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX2.2

Moderate

Station readings (1 station within 25 km)

2.9

Median

2.9

Average

2.9

Low

2.9

High

PM2.5 µg/m³ · Model: 5.8 · Bias: +2.9

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

09-05

25.4° 14.0°

2.81 mm

09-06

25.6° 13.0°

4.13 mm

09-07

19.6° 10.8°

09-08

18.2° 12.2°

6.13 mm

09-09

23.4° 11.2°

0.25 mm

09-10

19.5° 11.0°

10.88 mm

09-11

25.8° 10.2°

0.19 mm

Both models agree Avg diff: 4.6°C

Where are air quality stations near Saint-Hyacinthe?

Vallée-du-Richelieu, Quebec, Canada

19.3 km PM2.5: 5.3 µg/m³

Vallée-du-Richelieu, Quebec, Canada

19.3 km PM2.5: 2.9 µg/m³

Vallée-du-Richelieu, Quebec, Canada

19.3 km PM2.5: 7.0 µg/m³

Vallée-du-Richelieu, Quebec, Canada

19.3 km PM2.5: 4.6 µg/m³

Vallée-du-Richelieu, Quebec, Canada

19.3 km PM2.5: 3.8 µg/m³

Vallée-du-Richelieu, Quebec, Canada

19.3 km PM2.5: 4.3 µg/m³

Granby - Parc Poitevin, Quebec

29.4 km PM2.5: 4.4 µg/m³

What cities are near Saint-Hyacinthe?

12 Mont-Saint-Hilaire 12 Beloeil 15 Saint-Basile-le-Grand 16 Sainte-Julie 18 Granby 14 Chambly 17 Saint-Bruno-de-Montarville 17 Varennes 19 Boucherville 18 Saint-Hubert

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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 2026-09-05T13:05 UTC.