Air Quality in Hamilton, Canada

Windy
9.5°C · 66.6% humidity
9.5°
Feels 4.6°
32
Good
Air quality is satisfactory. Enjoy outdoor activities.
4 stations

Nearby Monitoring Stations

AQI Forecast
34 10pm
54
54
32 1am
38
23
26 4am
28
23
24 7am
25
23
24 10am
24
24
27 1pm
27
34
34 4pm
34
54
54 7pm
54
34
AD 728×90

Air Quality Index Trend

48h · 13 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.

66.6%
Humidity
53.8 km/h
Wind NNE
1022.4 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
32
7.65 µg/m³
PM10
19
20.55 µg/m³
050100150200300500

What is the weather forecast for Hamilton?

Temperature & Precipitation

PM2.5 Trend

48h · 13 stations
PM2.57.65 µg/m³ ✓ WHO
Good
PM1020.55 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
Station readings (4 stations within 25 km)
7.65
Median
8.05
Average
7.4
Low
8.4
High
PM2.5 µg/m³ · Model: 9.75 · Bias: +2.1

What is the 7-day forecast for Hamilton?

05-30
19.5° 9.5°
0.13 mm
05-31
27.0° 8.0°
06-01
29.2° 13.6°
06-02
20.4° 9.7°
06-03
25.2° 18.7°
06-04
23.5° 11.9°
0.31 mm
06-05
23.4° 8.4°
0.13 mm
Both models agree Avg diff: 4.9°C

Where are air quality stations near Hamilton?

34
Hamilton Downtown, Ontario, Canada
1.3 km PM2.5: 8.2 µg/m³
13
Hamilton Downtown, Ontario, Canada
1.3 km PM2.5: 3.1 µg/m³
53
Hamilton Downtown, Ontario, Canada
1.3 km PM2.5: 13.1 µg/m³
34
Hamilton Mountain, Ontario, Canada
2.5 km PM2.5: 8.2 µg/m³
31
Hamilton Mountain, Ontario, Canada
2.5 km PM2.5: 7.4 µg/m³
21
Hamilton West, Ontario, Canada
4.8 km PM2.5: 5.0 µg/m³
34
Hamilton West, Ontario, Canada
4.8 km PM2.5: 8.2 µg/m³
16
Burlington, Ontario, Canada
8.2 km PM2.5: 3.8 µg/m³
34
Burlington, Ontario, Canada
8.2 km PM2.5: 8.2 µg/m³

What cities are near Hamilton?

33 Stoney Creek 34 Waterdown 34 Ancaster 35 Burlington 33 Grimsby 37 Oakville 35 Milton 33 Brantford 35 Christopher-Champlain 37 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 2026-05-30T05:06 UTC.