Air Quality in Newmarket, Canada
Windy
21.5°C · 37.0% humidity
21.5°
Feels 21.5°
57
Moderate
Unusually sensitive people should consider reducing prolonged outdoor exertion.
2 stations
Nearby Monitoring Stations
Newmarket's air quality — share it
AQI Forecast
Calibrated
53
4pm
60
60
57
7pm
80
80
80
10pm
92
92
92
1am
109
109
109
4am
109
109
92
7am
80
53
51
10am
51
51
51
1pm
51
51
Station readings
61
53
50
50
CAMS model
adj +26
27
34
34
34
54
54
54
66
66
66
83
83
83
83
83
66
54
27
25
25
25
25
25
25
Air Quality Index Trend
27h · 1 stnNewmarket's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.
37.0%
Humidity
71.0 km/h
Wind NNW
1014.0 hPa
Pressure
2.9
UV Moderate
GoodModerateUSGUnhealthyVery UnhealthyHazardous
Which pollutant is driving the AQI?
PM2.5▲
15.0 µg/m³
PM10
13.7 µg/m³
050100150200300500
What is the weather forecast for Newmarket?
Temperature & Precipitation
PM2.5 Trend
27h · 1 stationPM2.515.0 µg/m³
✓ WHO
Moderate
PM1013.7 µg/m³
Good
UV INDEX2.9
Moderate
Station readings (2 stations within 25 km)
15.0
Median
15.0
Average
13.1
Low
16.9
High
PM2.5 µg/m³ · Model: 7.35 · Bias: -7.7
What is the 7-day forecast for Newmarket?
08-03
23.2° 17.5°
3.62 mm
08-04
25.9° 16.9°
0.56 mm
08-05
33.0° 13.8°
08-06
28.1° 18.1°
7.25 mm
08-07
27.2° 12.8°
3.56 mm
08-08
34.1° 16.9°
0.44 mm
08-09
36.0° 18.7°
1.31 mm
Both models agree
Avg diff: 3.3°C
Where are air quality stations near Newmarket?
50
Newmarket, Ontario, Canada
36
Newmarket, Ontario, Canada
53
Newmarket, Ontario, Canada
57
Newmarket, Ontario, Canada
50
Newmarket, Ontario, Canada
53
Newmarket, Ontario, Canada
What cities are near Newmarket?
Get AQI alerts for Newmarket
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 2026-08-07T23:46 UTC.