Air Quality in Bolton, Canada

Windy
13.7°C · 95.7% humidity
13.7°
Feels 13.7°
15
Good
Air quality is satisfactory. Enjoy outdoor activities.
4 stations

Nearby Monitoring Stations

AQI Forecast Calibrated
18 5am
18
15
15 8am
15
15
16 11am
16
16
16 2pm
15
15
15 5pm
15
15
15 8pm
16
16
16 11pm
16
16
16 2am
16
16
Station readings
18
18
7
10
CAMS model adj -9
24
24
24
24
24
24
25
25
25
25
24
24
24
24
24
24
25
25
25
25
25
25
25
25
AD 728×90

Air Quality Index Trend

48h · 3 stn

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

95.7%
Humidity
46.3 km/h
Wind NNW
1013.6 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲
15
3.65 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

What is the weather forecast for Bolton?

Temperature & Precipitation

PM2.5 Trend

48h · 3 stations
PM2.53.65 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
AD 300×250
Station readings (4 stations within 25 km)
3.65
Median
3.42
Average
1.4
Low
5.5
High
PM2.5 µg/m³ · Model: 5.9 · Bias: +2.2

What is the 7-day forecast for Bolton?

09-05
22.0° 11.1°
0.06 mm
09-06
24.1° 12.7°
2.06 mm
09-07
22.1° 13.1°
0.06 mm
09-08
23.1° 13.3°
1.94 mm
09-09
25.1° 10.4°
0.13 mm
09-10
22.5° 12.4°
2.94 mm
09-11
22.5° 10.6°
0.31 mm
Both models agree Avg diff: 3.6°C

Where are air quality stations near Bolton?

22
Brampton, Ontario, Canada
20.4 km PM2.5: 5.3 µg/m³
21
Brampton, Ontario, Canada
20.4 km PM2.5: 5.0 µg/m³
21
Brampton, Ontario, Canada
20.4 km PM2.5: 5.0 µg/m³
18
Brampton, Ontario, Canada
20.4 km PM2.5: 4.3 µg/m³
12
Brampton, Ontario, Canada
20.4 km PM2.5: 2.9 µg/m³
21
NASA GSFC Rutgers Calib. N20
23.7 km PM2.5: 5.1 µg/m³
7
Toronto West, Ontario, Canada
24.5 km PM2.5: 1.7 µg/m³
6
Toronto West, Ontario, Canada
24.5 km PM2.5: 1.4 µg/m³
17
Toronto West, Ontario, Canada
24.5 km PM2.5: 4.1 µg/m³
17
Toronto West, Ontario, Canada
24.5 km PM2.5: 4.1 µg/m³

What cities are near Bolton?

12 Mount Olive-Silverstone-Jamestown 20 Vaughan 23 Caledon 12 Humbermede 10 West Humber-Clairville 16 Black Creek 22 Brampton 13 Glenfield-Jane Heights 20 York University Heights 20 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 2026-09-05T12:11 UTC.