Air Quality in Stouffville, Canada

Windy
21.3°C · 36.9% humidity
21.3°
Feels 21.3°
52
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
6 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
54 4pm
47
44
52 7pm
76
76
76 10pm
76
88
88 1am
105
105
105 4am
105
106
88 7am
76
47
47 10am
47
49
49 1pm
49
49
Station readings
54
47
44
45
CAMS model adj +22
27
27
34
34
54
54
54
54
66
66
83
83
83
83
84
66
54
25
25
25
27
27
27
27
AD 728×90

Air Quality Index Trend

28h · 3 stn

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

36.9%
Humidity
75.0 km/h
Wind NW
1013.9 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
52
12.54 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Stouffville?

Temperature & Precipitation

PM2.5 Trend

28h · 3 stations
PM2.512.54 µg/m³ ✓ WHO
Moderate
PM1013.7 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (6 stations within 25 km)
12.54
Median
12.2
Average
10.1
Low
16.9
High
PM2.5 µg/m³ · Model: 8.2 · Bias: -4.3

What is the 7-day forecast for Stouffville?

08-03
23.4° 17.3°
4.81 mm
08-04
27.3° 17.5°
0.25 mm
08-05
33.3° 13.9°
0.06 mm
08-06
27.8° 18.1°
6.81 mm
08-07
28.4° 13.7°
3.38 mm
08-08
34.0° 17.1°
0.06 mm
08-09
37.0° 19.4°
1.69 mm
Both models agree Avg diff: 3.3°C

Where are air quality stations near Stouffville?

53
Newmarket, Ontario, Canada
20.6 km PM2.5: 13.1 µg/m³
50
Newmarket, Ontario, Canada
20.6 km PM2.5: 12.0 µg/m³
57
Newmarket, Ontario, Canada
20.6 km PM2.5: 15.0 µg/m³
53
Newmarket, Ontario, Canada
20.6 km PM2.5: 13.1 µg/m³
36
Newmarket, Ontario, Canada
20.6 km PM2.5: 8.6 µg/m³
50
Newmarket, Ontario, Canada
20.6 km PM2.5: 12.0 µg/m³
39
Toronto East, Ontario, Canada
24.4 km PM2.5: 9.4 µg/m³
50
Toronto East, Ontario, Canada
24.4 km PM2.5: 12.0 µg/m³
55
Toronto East, Ontario, Canada
24.4 km PM2.5: 14.0 µg/m³
55
Toronto East, Ontario, Canada
24.4 km PM2.5: 14.0 µg/m³

What cities are near Stouffville?

57 Whitchurch-Stouffville 49 Markham 52 Pickering 48 Milliken 49 Malvern 57 Aurora 48 Agincourt North 55 Uxbridge 48 Steeles 49 Richmond Hill
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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 2026-08-07T23:46 UTC.