What is the air quality in Newmarket today?

The current Air Quality Index (AQI) in Newmarket is 41 (Good). PM2.5 concentration is 9.85 µg/m³.

What is the temperature in Newmarket right now?

The current temperature in Newmarket is 6.9°C (feels like 1.8°C). Humidity is 78.9% and wind speed is 40.9 km/h.

Is it safe to go outside in Newmarket?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.7 (Low).

Air Quality in Newmarket, Canada

Windy

6.9°C · 78.9% humidity

6.9°

Feels 1.8°

Good

Air quality is satisfactory. Enjoy outdoor activities.

2 stations

Nearby Monitoring Stations

AQI Forecast

25 10pm

41 1am

30 4am

26 7am

25 10am

24 1pm

24 4pm

24 7pm

Air Quality Index Trend

48h · 10 stn

View full history →

Newmarket's air quality is primarily affected by vehicle emissions and industrial activity. Seasonal wildfire smoke and weather patterns can cause periodic air quality deterioration.

78.9%

Humidity

40.9 km/h

Wind N

1022.9 hPa

Pressure

0.7

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

9.85 µg/m³

PM10

13.7 µg/m³

050100150200300500

What is the weather forecast for Newmarket?

Temperature & Precipitation

PM2.5 Trend

48h · 10 stations

PM2.59.85 µg/m³ ✓ WHO

Good

PM1013.7 µg/m³

Good

UV INDEX0.7

Low

Station readings (2 stations within 25 km)

9.85

Median

9.85

Average

9.6

Low

10.1

High

PM2.5 µg/m³ · Model: 5.9 · Bias: -4.0

What is the 7-day forecast for Newmarket?

05-30

18.4° 6.9°

0.06 mm

05-31

25.6° 5.9°

06-01

28.3° 13.6°

06-02

20.1° 7.5°

0.38 mm

06-03

22.9° 18.7°

0.06 mm

06-04

19.7° 10.8°

06-05

22.0° 7.4°

0.56 mm

Both models agree Avg diff: 5.3°C

Where are air quality stations near Newmarket?

Newmarket, Ontario, Canada

1.5 km PM2.5: 3.1 µg/m³

Newmarket, Ontario, Canada

1.5 km PM2.5: 10.1 µg/m³

What cities are near Newmarket?

40 Aurora 41 East Gwillimbury 41 Whitchurch-Stouffville 39 Stouffville 30 Richmond Hill 34 Keswick 26 Vaughan 32 Markham 32 Milliken 36 Uxbridge

Get AQI alerts for Newmarket

Notify me when air quality reaches:

ModerateAQI > 50 Unhealthy for Sensitive GroupsAQI > 100 UnhealthyAQI > 150 Very UnhealthyAQI > 200

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 2026-05-30T05:04 UTC.