Air Quality in Cornwall, Canada
Windy
26.2°C · 61.4% humidity
26.2°
Feels 26.2°
52
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
Model forecast
Nearby Monitoring Stations
Cornwall's air quality — share it
AQI Forecast
Calibrated
27
10am
29
29
52
1pm
45
41
37
4pm
35
31
30
7pm
29
28
27
10pm
27
27
26
1am
26
26
26
4am
26
26
26
7am
26
26
Station readings
18h ago
AQI 37
PM2.5 8.9 µg/m³ · 18h ago
CAMS model
adj +2
25
27
27
27
27
27
27
27
25
25
25
24
24
24
24
24
24
24
24
24
24
24
24
24
Air Quality Index Trend
7h · 1 stnCornwall's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
61.4%
Humidity
53.2 km/h
Wind NE
1014.9 hPa
Pressure
6.9
UV High
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
12.85 µg/m³
PM10
27.45 µg/m³
050100150200300500
What is the weather forecast for Cornwall?
Temperature & Precipitation
PM2.5 Trend
7h · 1 stationPM2.512.85 µg/m³
✓ WHO
Moderate
PM1027.45 µg/m³
Good
UV INDEX6.9
High
What is the 7-day forecast for Cornwall?
07-21
26.2° 20.3°
07-22
23.2° 16.3°
1.69 mm
07-23
18.6° 12.5°
3.0 mm
07-24
22.4° 11.7°
3.13 mm
07-25
20.9° 17.8°
25.81 mm
07-26
21.8° 15.3°
9.56 mm
07-27
28.1° 18.6°
11.87 mm
Both models agree
Avg diff: 2.5°C
Where are air quality stations near Cornwall?
What cities are near Cornwall?
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Data sources: Weather forecast from ECMWF (IFS & CAMS models). AQI calculated using US EPA standard. Updated 2026-07-21T17:16 UTC.