Air Quality in Saint-Hyacinthe, Canada
Partly Cloudy
25.0°C · 59.1% humidity
25.0°
Feels 25.0°
61
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Model forecast
Nearby Monitoring Stations
Saint-Hyacinthe's air quality — share it
AQI Forecast
27
10am
27
27
61
1pm
51
51
47
4pm
43
40
39
7pm
37
27
27
10pm
26
26
25
1am
24
24
24
4am
24
24
24
7am
24
24
Air Quality Index Trend
48h · 2 stnSaint-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. Current PM2.5 concentration in Saint-Hyacinthe is 1.1× the WHO 24-hour guideline of 15 µg/m³.
59.1%
Humidity
36.0 km/h
Wind NE
1015.9 hPa
Pressure
14.9
UV Extreme
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
16.8 µg/m³
PM10
59.3 µg/m³
050100150200300500
What is the weather forecast for Saint-Hyacinthe?
Temperature & Precipitation
PM2.5 Trend
48h · 2 stationsPM2.516.8 µg/m³
×1.1 WHO
Moderate
PM1059.3 µg/m³
Moderate
UV INDEX14.9
Extreme
What is the 7-day forecast for Saint-Hyacinthe?
07-21
25.0° 18.7°
0.06 mm
07-22
23.7° 16.7°
0.5 mm
07-23
18.8° 13.3°
7.0 mm
07-24
21.8° 11.9°
0.56 mm
07-25
20.6° 17.1°
12.31 mm
07-26
20.8° 15.9°
6.44 mm
07-27
26.2° 17.6°
1.56 mm
Both models agree
Avg diff: 2.2°C
Where are air quality stations near Saint-Hyacinthe?
69
Vallée-du-Richelieu, Quebec, Canada
34
Vallée-du-Richelieu, Quebec, Canada
1
Vallée-du-Richelieu, Quebec, Canada
67
Granby - Parc Poitevin, Quebec
What cities are near Saint-Hyacinthe?
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T17:25 UTC.