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Heat warning remains in effect for Newmarket and area

Daytime high temperatures in excess of 30 degrees Celsius, with humidex values in the high thirties to low forties, are expected until at least Sunday, and likely beyond
Hot Summer
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WEATHER ALERT
ENVIRONMENT CANADA
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Heat Warning in effect for:

  • Newmarket - Georgina - Northern York Region
  • Pickering - Oshawa - Southern Durham Region
  • Uxbridge - Beaverton - Northern Durham Region
  • Vaughan - Richmond Hill - Markham

A prolonged period of hot weather is expected through the weekend into early next week.

Daytime high temperatures in excess of 30 degrees Celsius, with humidex values in the high thirties to low forties, are expected until at least Sunday, and likely beyond. Overnight lows in excess of 20 degrees Celsius are also expected through this period, providing little relief from the heat.

Please refer to your public forecast for further details on expected temperatures.

Hot and humid air can also bring deteriorating air quality and can result in the Air Quality Health Index approaching the high risk category.

Extreme heat affects everyone.

The risks are greater for young children, pregnant women, older adults, people with chronic illnesses and people working or exercising outdoors.

Never leave people or pets inside a parked vehicle.

Watch for the symptoms of heat illness: dizziness/fainting; nausea/vomiting; rapid breathing and heartbeat; extreme thirst; decreased urination with unusually dark urine.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to ONstorm@canada.ca or tweet reports using #ONStorm.

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