Air Quality in St. Thomas, Canada
Windy
12.2°C · 82.5% humidity
12.2°
Feels 12.2°
23
Good
Air quality is satisfactory. Enjoy outdoor activities.
Calibrated model
Nearby Monitoring Stations
AQI Forecast
25
2pm
25
25
25
5pm
25
37
37
8pm
37
37
37
11pm
37
37
37
2am
37
37
37
5am
37
37
37
8am
37
37
37
11am
37
25
82.5%
Humidity
130.4 km/h
Wind SSW
1023.8 hPa
Pressure
0.7
UV Low
GoodModerateUSGUnhealthyVery UnhealthyHazardous
What is the weather forecast for St. Thomas?
Temperature & Precipitation
PM2.55.41 µg/m³
✓ WHO
Good
PM1013.7 µg/m³
Good
UV INDEX0.7
Low
What is the 7-day forecast for St. Thomas?
04-09
12.2° 1.3°
04-10
14.7° 6.6°
04-11
12.9° 5.9°
2.5 mm
04-12
8.7° 6.0°
2.25 mm
04-13
20.4° 10.7°
4.69 mm
04-14
19.0° 12.2°
3.56 mm
04-15
15.6° 6.9°
14.13 mm
Both models agree
Avg diff: 3.0°C
Where are air quality stations near St. Thomas?
37
Port Stanley, Ontario, Canada
36
Port Stanley, Ontario, Canada
34
London, Ontario, Canada
42
London, Ontario, Canada
34
London, Ontario, Canada
What cities are near St. Thomas?
Data sources: AQI from ground-level monitoring stations via AQICN. Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-04-09T17:08 UTC.