What is the air quality in Newmarket today?

The current Air Quality Index (AQI) in Newmarket is 29 (Good). PM2.5 concentration is 7.0 µg/m³.

What is the temperature in Newmarket right now?

The current temperature in Newmarket is 3.8°C (feels like -2.4°C). Humidity is 65.6% and wind speed is 41.2 km/h.

Is it safe to go outside in Newmarket?

Air quality is satisfactory. Enjoy outdoor activities. The UV Index is 0.0 (Low).

Air Quality in Newmarket, Canada

Windy

3.8°C · 65.6% humidity

3.8°

Feels -2.4°

Good

Air quality is satisfactory. Enjoy outdoor activities.

1 station

Nearby Monitoring Stations

AQI Forecast

— 5pm

—

— 8pm

—

— 11pm

—

— 2am

—

— 5am

—

— 8am

—

— 11am

—

— 2pm

—

Station readings

Air Quality Index Trend

45h · 1 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.

65.6%

Humidity

41.2 km/h

Wind SSE

1028.9 hPa

Pressure

0.0

UV Low

GoodModerateUSGUnhealthyVery UnhealthyHazardous

Which pollutant is driving the AQI?

PM2.5▲

7.0 µg/m³

PM10

27.4 µg/m³

050100150200300500

What is the weather forecast for Newmarket?

Temperature & Precipitation

PM2.5 Trend

45h · 1 station

PM2.57.0 µg/m³ ✓ WHO

Good

PM1027.4 µg/m³

Good

UV INDEX0.0

Low

Station readings (1 station within 25 km)

7.0

Median

7.0

Average

7.0

Low

7.0

High

PM2.5 µg/m³ · Model: 8.2 · Bias: +1.2

What is the 7-day forecast for Newmarket?

10-21

17.7° 3.8°

10-22

12.8° 4.9°

10-23

11.7° 0.8°

2.63 mm

10-24

14.2° 1.5°

0.94 mm

10-25

11.7° 3.0°

2.75 mm

10-26

7.6° 3.5°

9.44 mm

10-27

7.8° 1.9°

0.75 mm

Both models agree Avg diff: 4.0°C

Where are air quality stations near Newmarket?

Newmarket, Ontario, Canada

1.5 km PM2.5: 7.2 µg/m³

Newmarket, Ontario, Canada

1.5 km PM2.5: 5.8 µg/m³

Newmarket, Ontario, Canada

1.5 km PM2.5: 5.3 µg/m³

Newmarket, Ontario, Canada

1.5 km PM2.5: 5.3 µg/m³

What cities are near Newmarket?

28 Aurora 29 East Gwillimbury 29 Whitchurch-Stouffville 22 Stouffville 18 Richmond Hill 22 Keswick 17 Vaughan 18 Markham 18 Milliken 20 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 2026-10-21T00:34 UTC.