Air Quality in Hamilton, Canada

Windy
23.1°C · 32.7% humidity
23.1°
Feels 23.1°
36
Good
Air quality is satisfactory. Enjoy outdoor activities.
7 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
36 4pm
36
54
36 7pm
37
38
39 10pm
40
40
40 1am
21
21
21 4am
21
14
12 7am
12
12
12 10am
12
12
12 1pm
12
12
Station readings
36
36
54
53
CAMS model adj -13
54
54
54
54
54
54
54
54
54
54
34
34
34
34
27
25
25
25
25
25
25
25
25
25
AD 728×90

Air Quality Index Trend

28h · 4 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.

32.7%
Humidity
46.8 km/h
Wind NNW
1014.2 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
36
8.7 µg/m³
PM10
25
27.4 µg/m³
050100150200300500

What is the weather forecast for Hamilton?

Temperature & Precipitation

PM2.5 Trend

28h · 4 stations
PM2.58.7 µg/m³ ✓ WHO
Good
PM1027.4 µg/m³
Good
UV INDEX2.9
Moderate
AD 300×250
Station readings (7 stations within 25 km)
8.7
Median
9.1
Average
8.4
Low
9.8
High
PM2.5 µg/m³ · Model: 13.5 · Bias: +4.8

What is the 7-day forecast for Hamilton?

08-03
23.1° 20.3°
4.44 mm
08-04
33.2° 15.6°
1.13 mm
08-05
36.4° 14.1°
08-06
28.3° 18.9°
5.0 mm
08-07
31.6° 13.6°
0.44 mm
08-08
35.9° 18.4°
08-09
38.2° 19.2°
0.19 mm
Both models agree Avg diff: 3.6°C

Where are air quality stations near Hamilton?

68
Hamilton Downtown, Ontario, Canada
1.3 km PM2.5: 20.2 µg/m³
55
Hamilton Downtown, Ontario, Canada
1.3 km PM2.5: 14.0 µg/m³
34
Hamilton Downtown, Ontario, Canada
1.3 km PM2.5: 8.2 µg/m³
55
Hamilton Downtown, Ontario, Canada
1.3 km PM2.5: 14.0 µg/m³
35
Hamilton Downtown, Ontario, Canada
1.3 km PM2.5: 8.4 µg/m³
30
Hamilton Downtown, Ontario, Canada
1.3 km PM2.5: 7.2 µg/m³
41
Hamilton Mountain, Ontario, Canada
2.5 km PM2.5: 9.8 µg/m³
42
Hamilton Mountain, Ontario, Canada
2.5 km PM2.5: 10.1 µg/m³
34
Hamilton Mountain, Ontario, Canada
2.5 km PM2.5: 8.2 µg/m³
34
Hamilton Mountain, Ontario, Canada
2.5 km PM2.5: 8.2 µg/m³

What cities are near Hamilton?

38 Stoney Creek 38 Waterdown 38 Ancaster 38 Burlington 38 Grimsby 39 Oakville 41 Milton 46 Brantford 38 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 2026-08-07T23:45 UTC.