Air Quality in Guelph, Canada
Drizzle
8.1°C · 92.1% humidity
8.1°
Feels 1.9°
26
Good
Air quality is satisfactory. Enjoy outdoor activities.
4 stations
Nearby Monitoring Stations
Guelph's air quality — share it
AQI Forecast
Calibrated
36
8pm
36
38
26
11pm
31
35
38
2am
40
41
42
5am
43
44
44
8am
64
45
38
11am
38
38
38
2pm
38
38
36
5pm
36
36
Station readings
29h ago
AQI 38
PM2.5 9.1 µg/m³ · 29h ago
Air Quality Index Trend
48h · 12 stnGuelph's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
92.1%
Humidity
75.4 km/h
Wind NW
1004.0 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
6.2 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Guelph?
Temperature & Precipitation
PM2.5 Trend
48h · 12 stationsPM2.56.2 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (4 stations within 25 km)
6.2
Median
6.78
Average
6.2
Low
8.2
High
PM2.5 µg/m³ · Model: 7.35 · Bias: +1.1
What is the 7-day forecast for Guelph?
06-09
29.4° 6.7°
0.5 mm
06-10
15.7° 11.2°
1.25 mm
06-11
23.4° 8.3°
06-12
24.6° 14.7°
3.31 mm
06-13
24.0° 18.7°
2.75 mm
06-14
25.1° 13.0°
06-15
28.2° 16.8°
Both models agree
Avg diff: 7.0°C
Where are air quality stations near Guelph?
18
Guelph, Ontario, Canada
41
Guelph, Ontario, Canada
94
Kitchener, Ontario, Canada
9
Kitchener, Ontario, Canada
66
Kitchener, Ontario, Canada
What cities are near Guelph?
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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 2026-06-09T03:33 UTC.