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Humidex could reach high 30s, low 40s, warns Environment Canada

Hot weather begins Tuesday
heat wave
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WEATHER ALERT
ENVIRONMENT CANADA
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Heat warning in effect for:
    •    Barrie - Collingwood - Hillsdale
    •    Innisfil - New Tecumseth - Angus
    •    Orangeville - Grand Valley - Southern Dufferin County
    •    Shelburne - Mansfield - Northern Dufferin County

A period of hot weather will begin Tuesday.

Daytime high temperatures in excess of 30 degrees Celsius, with humidex values in the high 30s to low 40s, are expected this week. Overnight lows near 20 degrees Celsius are also expected through this period, providing little relief from the heat.

A slightly cooler airmass may move into the area this weekend, however there is considerable uncertainty.

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.

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

Check on older family, friends and neighbours. Make sure they are cool and drinking water.

Shade yourself with an umbrella or a wide-brimmed hat.

Never leave people or pets inside a parked vehicle.

Keep your house cool. Block the sun by closing curtains or blinds.

Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to [email protected] or tweet reports using #ONStorm.

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