Environment Canada's Heat Warning remains in effect for Toronto as humidex soars to 40°C

Jul 6 2020, 6:17 am

The Heat Warning issued by Environment Canada last week remains in effect for Toronto on Monday morning, and is expected to last throughout the week.

Over the next several days, daytime high temperatures in excess of 30°C are expected, with humidex values in the high 30s and low 40s.

Monday’s forecast shows a high of 32°C that’ll feel like 36°C , and Tuesday, 33°C that should feel like 39°C. Wednesday, Thursday, and Friday call for 32°C, 34°C, and 33°C respectively.

Overnight lows near 20°C are also expected, which means there will be a little relief from the heat.

According to the weather agency, “a slightly cooler airmass” may reach the area over the weekend, but there is “considerable uncertainty” about that.

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

Extreme heat affects everyone, and the risks are greater for young children, pregnant women, older adults, people with chronic illnesses and people working or exercising outdoors.

Symptoms of heat illness include dizziness/fainting; nausea/vomiting; rapid breathing and heartbeat; extreme thirst; and decreased urination with unusually dark urine.

To preserve their safety, people or pets should never be left inside a parked vehicle.

Environment Canada

As a safety measure, the City of Toronto has opened 15 Emergency Cooling Centres (ECCs) for the duration of the Heat Warning — these spaces are available to residents who do not have access to a cool space and cannot keep cool in their home or outdoors.

This interactive map shows ECCs across the city.

All the centres will operate from 11 am to 7 pm, except Metro Hall, 55 John Street, which will run 24 hours during the warning.