ECCC Stored Feed

IGTA Civic Environmental IntelligenceUpdated Nov 10, 12:00 a.m. ET

Your city. Your environment.

Meteorological indicators and the official Canadian Air Quality Health Index (AQHI) across the Greater Toronto Area.

Quick Select:East Gwillimbury Richmond Hill Toronto Markham Mississauga Vaughan Oakville

No alerts at last check, 12:40 a.m. ET•UV forecast 1 Low, Tue, Nov 10.

AQHI 1 Low

Observation • King City North

ECCC

Reported for Newmarket, the nearest Environment Canada location to East Gwillimbury

5°C

“Mainly cloudy. 30 percent chance of showers early in the morning. Wind northwest 30 km/h gusting to 50. High 14. UV index 1 or low.”

High / Low14° / 2°

Wind9 km/h SSW

Humidity99%

Barometer101.4 kPa ↓

UV Index1 Low

Dew Point5°C

Observed Nov 10, 12:00 a.m. ET

View 7-day extended forecast

AQHI • ECCC Canada

Newmarket

Low Risk (1 – 3)Official Canadian Scale

Low (1-3)Moderate (4-6)High (7-10)Very High (10+)

East Gwillimbury at Step 1

At-risk population: Enjoy your usual outdoor activities.

General population: Enjoy your usual outdoor activities.

PM2.52 µg/m³

Ozone (O₃)20 ppb

NO₂3.5 ppb

Observed Nov 9, 11:00 p.m. ET

Explore GTA monitoring stationsHourly

Forecast Outlook

ECCC

Local Outlook

Forecast for Newmarket, the nearest Environment Canada location to East Gwillimbury

Tuesday30% PoP

Mainly cloudy. 30 percent chance of showers early in the morning. Wind northwest 30 km/h gusting to 50. High 14. UV index 1 or low.

Tuesday night30% PoP

Becoming partly cloudy in the evening. 30 percent chance of showers overnight. Wind northwest 20 km/h becoming light early in the evening. Low plus 2.

Wednesday40% PoP

Cloudy with 40 percent chance of showers. High 10.

Issued Nov 9, 3:30 p.m. ET

View the 7-day forecast

Meteorological Trajectory

24-Hour East Gwillimbury Atmospheric Projection

The hourly forecast is temporarily unavailable.

Methodology

Understanding the Canadian AQHI Scale

The Air Quality Health Index is Canada's scale for the health risk of the air around you. Environment and Climate Change Canada publishes it, from a mixture of ground-level ozone, fine particulate matter (PM2.5) and nitrogen dioxide.

1 – 3 Low RiskEnjoy your usual outdoor activities.

4 – 6 Moderate RiskConsider reducing or rescheduling strenuous outdoor activities if you have symptoms like coughing or throat irritation.

7 – 10 High RiskReduce or reschedule strenuous outdoor activities.

10+ Very High RiskAvoid strenuous activities outdoors.

Official health advice, Canada.ca

Cross-Regional Observatories

Greater Toronto Station Array

8 Active Stations

Toronto

Metro Region

Low Risk

PM2.5: 5 µg/m³

Brampton

Peel Region

Low Risk

PM2.5: 3 µg/m³

Burlington

Halton Region

Low Risk

PM2.5: 3 µg/m³

Milton

Halton Region

Low Risk

PM2.5: 3 µg/m³

Mississauga

Peel Region

Low Risk

PM2.5: 3 µg/m³

NewmarketSelected

York Region

Low Risk

PM2.5: 2 µg/m³

Oakville

Halton Region

Low Risk

PM2.5: 3 µg/m³

Oshawa

Durham Region

Low Risk

PM2.5: 2 µg/m³

Civic GIS Observation

GTA Environmental Overlay

Richmond HillAQHI: 2 • 5°C

MarkhamAQHI: 2 • 7°C

VaughanAQHI: 2 • 5°C

TorontoAQHI: 2 • 7°C

MississaugaAQHI: 2 • 7°C

BramptonAQHI: 1 • 7°C

OakvilleAQHI: 2 • 9°C

NewmarketAQHI: 1 • 5°C

OshawaAQHI: 1 • 7°C

East GwillimburyAQHI: 1 • 5°C

East Gwillimbury FocusRadar Nov 10, 12:15 a.m. ET

Places sit at their approximate centres. Lake Ontario's shore is simplified. Each pin links to that city.

Public Data Sources

Data Source: Environment and Climate Change Canada. Licence. Pollutant readings from Air Quality Ontario, automatically polled and not finally verified. IGTA is not affiliated with or endorsed by either government.

ECCC Canada

Ontario MECP

Notice: Shown as published and may be out of date. This is not a warning service. For official forecasts and alerts, see weather.gc.ca.

ECCC Historical Data•Air Quality Ontario

East GwillimburyYork Region

12:00 a.m. ET

East Gwillimbury Richmond Hill Markham Toronto Mississauga Vaughan

Civic Meteorological Digest

Your city. Your environment.

Environment Canada weather and air quality for the Greater Toronto Area.

No alerts at last check, 12:40 a.m. ET • UV 1 forecast

Ambient StateNewmarket

5°

High / Low14° / 2°

Wind Vector9 km/h SSW

Pressure101.4 kPa

Solar Noon: 12:01 PM Humidity: 99%

Reported for Newmarket, the nearest Environment Canada location to East Gwillimbury

Observed Nov 10, 12:00 a.m. ET

Federal Air Quality

AQHI Index 1 • Low Risk

1.4

1 Low (1-3)Moderate (4-6)High (7-10+)

General Population: Enjoy your usual outdoor activities.

At-Risk Community: Enjoy your usual outdoor activities.

PM 2.52 μg/m³

Ozone (O₃)20 ppb

NO₂3.5 ppb

Reported for Newmarket, the nearest Environment Canada location to East Gwillimbury

Observed Nov 9, 11:00 p.m. ET

Hourly Trend

24-Hour Atmosphere Projection

The hourly forecast is temporarily unavailable.

Cross-Regional Readings

GTA Sensor Network Readings

Outlook

Local Forecast

Tuesday30% PoP

Mainly cloudy. 30 percent chance of showers early in the morning. Wind northwest 30 km/h gusting to 50. High 14. UV index 1 or low.

Tuesday night30% PoP

Becoming partly cloudy in the evening. 30 percent chance of showers overnight. Wind northwest 20 km/h becoming light early in the evening. Low plus 2.

Wednesday40% PoP

Cloudy with 40 percent chance of showers. High 10.

Radar Mosaic

ECCC Composite

Retrieved Nov 10, 12:15 a.m. ET

Data Sources

Data Source: Environment and Climate Change Canada. Licence. Pollutants from Air Quality Ontario, not finally verified. Shown as published and may be out of date. This is not a warning service. For official forecasts and alerts, see weather.gc.ca. IGTA is not affiliated with or endorsed by either government.