Air Quality in Guelph, Canada
Drizzle
14.2°C · 93.3% humidity
14.2°
Feels 14.2°
10
Good
Air quality is satisfactory. Enjoy outdoor activities.
4 stations
Nearby Monitoring Stations
Guelph's air quality — share it
AQI Forecast
Calibrated
14
5am
14
11
10
8am
14
14
14
11am
14
15
15
2pm
15
15
14
5pm
14
14
14
8pm
15
15
15
11pm
15
15
15
2am
14
15
Station readings
17
16
11
9
CAMS model
adj -10
24
24
24
24
24
24
24
24
25
25
25
25
24
24
24
24
25
25
25
25
25
25
24
25
Air Quality Index Trend
48h · 2 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.
93.3%
Humidity
53.2 km/h
Wind N
1013.3 hPa
Pressure
1.4
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5
2.4 µg/m³
PM10▲
13.7 µg/m³
050100150200300500
What is the weather forecast for Guelph?
Temperature & Precipitation
PM2.5 Trend
48h · 2 stationsPM2.52.4 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX1.4
Low
Station readings (4 stations within 25 km)
2.4
Median
2.62
Average
2.2
Low
3.1
High
PM2.5 µg/m³ · Model: 5.9 · Bias: +3.5
What is the 7-day forecast for Guelph?
09-05
21.8° 11.8°
0.5 mm
09-06
23.3° 13.9°
0.88 mm
09-07
20.4° 13.1°
1.75 mm
09-08
22.4° 12.3°
5.06 mm
09-09
26.0° 11.6°
0.94 mm
09-10
22.2° 11.1°
1.69 mm
09-11
25.8° 10.2°
0.62 mm
Both models agree
Avg diff: 4.0°C
Where are air quality stations near Guelph?
9
Guelph, Ontario, Canada
21
Guelph, Ontario, Canada
11
Guelph, Ontario, Canada
25
Kitchener, Ontario, Canada
13
Kitchener, Ontario, Canada
11
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 2026-09-05T12:11 UTC.