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

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
AD 728×90

Air Quality Index Trend

48h · 12 stn

Guelph'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
PM2.5
33
7.9 µg/m³
PM10
13
13.7 µg/m³
050100150200300500

Temperature & Precipitation

PM2.5 Trend

48h · 12 stations
PM2.57.9 µg/m³ ✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
AD 300×250
7.9
Median
8.4
Average
7.9
Low
9.1
High
PM2.5 µg/m³ · Model: 6.5 · Bias: -1.4
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°
Get AQI alerts for Guelph

Notify me when air quality reaches:

Free · No account · Unsubscribe any time

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.