Heat warning continues as Toronto heads into first weekend of July

Jul 3 2020, 6:11 am

The heat warning issued for Toronto by Environment Canada on Thursday continues, as the first weekend of July calls for fiery feels-like temperatures in the city.

Hot weather is expected to last through the weekend into early next week, the weather agency says, with a risk of a thunderstorm and a humidex of 37°C in Friday’s forecast.

Over the next several days, daytime highs are projected to hit excesses of 30°C with humidex values in the high thirties to low forties — the pattern is expected to last until at least Sunday, and likely beyond.

Actual temperatures from today through to Sunday sit at 32°C across the board during the day, and 21°C, 18°C, and 20°C respectively at night.

Because overnight lows around and in excess of 20°C are expected, there is little projected relief from the heat.

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.