Air Quality in Hamilton, Canada

Windy
7.8°C · 91.3% humidity
7.8°
Feels 1.6°
37
Good
Air quality is satisfactory. Enjoy outdoor activities.
5 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
12 7pm
12
5
37 10pm
50
45
41 1am
39
37
35 4am
34
34
33 7am
33
33
32 10am
32
32
32 1pm
32
32
32 4pm
32
32
Station readings 28h ago
AQI 32
PM2.5 7.8 µg/m³ · 28h ago
AD 728×90

Air Quality Index Trend

48h · 12 stn

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

91.3%
Humidity
69.4 km/h
Wind NW
1002.2 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
37
8.95 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Hamilton?

Temperature & Precipitation

PM2.5 Trend

48h · 12 stations
PM2.58.95 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (5 stations within 25 km)
8.95
Median
7.76
Average
6.2
Low
9.1
High
PM2.5 µg/m³ · Model: 7.35 · Bias: -1.6

What is the 7-day forecast for Hamilton?

06-09
31.3° 7.8°
0.25 mm
06-10
18.0° 11.5°
3.69 mm
06-11
25.0° 9.5°
06-12
27.0° 15.0°
1.75 mm
06-13
23.8° 19.2°
3.38 mm
06-14
26.5° 14.1°
06-15
29.8° 18.2°
Both models agree Avg diff: 7.1°C

Where are air quality stations near Hamilton?

55
Hamilton Downtown, Ontario, Canada
1.3 km PM2.5: 14.0 µg/m³
95
Hamilton Downtown, Ontario, Canada
1.3 km PM2.5: 33.0 µg/m³
69
Hamilton Downtown, Ontario, Canada
1.3 km PM2.5: 20.7 µg/m³
90
Hamilton Mountain, Ontario, Canada
2.5 km PM2.5: 30.6 µg/m³
100
Hamilton Mountain, Ontario, Canada
2.5 km PM2.5: 35.4 µg/m³
197
Hamilton West, Ontario, Canada
4.8 km PM2.5: 144.6 µg/m³
112
Hamilton West, Ontario, Canada
4.8 km PM2.5: 40.0 µg/m³
44
Burlington, Ontario, Canada
8.2 km PM2.5: 10.6 µg/m³
76
Burlington, Ontario, Canada
8.2 km PM2.5: 24.0 µg/m³

What cities are near Hamilton?

34 Stoney Creek 30 Waterdown 35 Ancaster 28 Burlington 32 Grimsby 25 Oakville 28 Milton 40 Brantford 37 Christopher-Champlain 35 Fiddlesticks
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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 2026-06-09T02:10 UTC.