Air Quality in Bolton, Canada
Windy
7.3°C · 93.7% humidity
7.3°
Feels 0.4°
30
Good
Air quality is satisfactory. Enjoy outdoor activities.
6 stations
Nearby Monitoring Stations
Bolton's air quality — share it
AQI Forecast
Calibrated
29
4pm
29
29
30
7pm
29
29
29
10pm
31
31
29
1am
29
29
29
4am
29
29
29
7am
29
31
31
10am
31
38
38
1pm
58
58
Station readings
25h ago
AQI 31
PM2.5 7.5 µg/m³ · 25h ago
Air Quality Index Trend
49h · 9 stnBolton's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
93.7%
Humidity
87.9 km/h
Wind NW
1001.1 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
7.1 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Bolton?
Temperature & Precipitation
PM2.5 Trend
49h · 9 stationsPM2.57.1 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
Station readings (6 stations within 25 km)
7.1
Median
7.04
Average
5.3
Low
7.7
High
PM2.5 µg/m³ · Model: 7.1 · Bias: +0.0
What is the 7-day forecast for Bolton?
06-08
26.2° 5.8°
9.31 mm
06-09
29.6° 7.3°
0.44 mm
06-10
16.0° 11.3°
0.06 mm
06-11
24.7° 8.3°
06-12
25.0° 14.9°
0.5 mm
06-13
22.5° 17.7°
3.44 mm
06-14
25.6° 11.8°
0.69 mm
Both models agree
Avg diff: 7.1°C
Where are air quality stations near Bolton?
151
Brampton, Ontario, Canada
39
Brampton, Ontario, Canada
29
NASA GSFC Rutgers Calib. N20
140
Toronto West, Ontario, Canada
84
Newmarket, Ontario, Canada
94
Newmarket, Ontario, Canada
What cities are near Bolton?
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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 2026-06-08T23:11 UTC.