Heat wave kills 19 in eastern Canada

Mr. Feltmate says that while one isolated event might be normal, the world and Canada are seeing more extreme weather events - patterns that can be attributed to climate change. Phillips says that while the daytime high is expected to top out at 26 C and 25 C on Friday and Saturday, the mercury will shoot back up to the low to mid 30s in time for next week.

The number of deaths being attributed to an intense heat wave in Quebec has climbed to 15, prompting public-health officials to warn those at risk to take precautions to avoid heat-related illness.

The city has also extended hours at eight outdoor pools during the heat wave.

Dr. Stang says he doesn't fear having more frequent warnings will make people pay less attention to them. The deaths were not concentrated in any specific municipality. "We're inviting the population to be vigilant for the next two days - for themselves as well as those close to them".

"It could save a life", Genereux said.

Environment Canada said much of southern Ontario, including Toronto, also remains under a heat warning, with a humidex reading of 43 expected on Tuesday.

Premier Philippe Couillard praised the work of public health officials.

According to records, 106 people have died in Montreal due to heat since 2010.

He said the Montreal heat exposure victims were between 50 and 80.

"All of the deaths that we have identified are in a context of no air conditioning and where the measured temperature when the paramedics arrive is very high".

"My thoughts are with the loved ones of those who have died in Quebec during this heat wave", Prime Minister Justin Trudeau said on Twitter.

Outside Quebec, sweltering heat was felt in four other provinces.

Montreal city hall unveiled an "extreme heat" plan on Tuesday that includes distributing water to groups working with the homeless.