Air Quality in Guelph, Canada
Drizzle
6.7°C · 95.5% humidity
6.7°
Feels -0.4°
33
Good
Air quality is satisfactory. Enjoy outdoor activities.
3 stations
Nearby Monitoring Stations
Guelph's air quality — share it
AQI Forecast
Calibrated
9
7pm
9
9
33
10pm
34
29
26
1am
24
22
21
4am
20
20
19
7am
19
39
18
10am
11
11
11
1pm
11
11
11
4pm
9
9
Station readings
28h ago
AQI 38
PM2.5 9.1 µg/m³ · 28h 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.
95.5%
Humidity
80.6 km/h
Wind NW
1002.2 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
7.9 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Guelph?
Temperature & Precipitation
PM2.5 Trend
48h · 12 stationsPM2.57.9 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
Station readings (3 stations within 25 km)
7.9
Median
8.4
Average
7.9
Low
9.1
High
PM2.5 µg/m³ · Model: 6.5 · Bias: -1.4
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
9
Kitchener, Ontario, Canada
94
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 2026-06-09T02:10 UTC.