"The high heat and humidity could return on Wednesday", the heat warning reads.
According to the heat warning for Almaguin areas, first issued on Friday, June 29 at 3:19 p.m. and last updated at 4:57 a.m., Wednesday, July 4, temperatures on Wednesday and Thursday are once again forecast to climb into the low to mid 30s.
Toronto's Medical Officer of Health extended the city's heat warning until further notice over the weekend.
What's being described as "the most significant heat event in the past few years" is expected to continue over the next few days with humidex values forecast to reach 43. They planned to visit thousands more as the heat was expected to continue until Friday.
A fifth fatality may also have been caused by the heat, they said.
For people experiencing homelessness, the city said TTC tokens are available at several drop-ins throughout the city to be used to get to cool places.
"There are still two days left of particularly hot weather with particularly high humidex levels", Genereux said. The risks are greater for young children, pregnant women, older adults, people with chronic illnesses and people working or exercising outdoors.
To prevent heat stress during a heat alert, Dr. Strang suggests to stay in a shaded, cool or air-conditioned area, drink plenty of water, wear light-coloured clothing and to not leave anyone or any animal unattended in vehicles.