The oppressive heat and humidity will affect parts of southern Quebec and Ontario, where the humidity factor will fluctuate between 37 and 40.
Southwestern Quebec and the Southeastern Ontario are still in the throes of oppressive heat warnings on Wednesday as humidity will remain high in many areas, warns Environment Canada, which has issued multiple advisories.
< p class="e-p">In the Montreal area, the temperature will reach 31°C and the Humidex 40 or more on Wednesday. This is also the case in the Laurentians, Lanaudière and Montérégie, where the feeling of heat will also be very high. And the weather will remain very hot and humid at least until Sunday.
There are risks of showers and thunderstorms for the metropolis on Thursday. The mercury is expected to settle at 26°C on Sunday, Environment Canada predicts, offering some respite for the population.
In the Outaouais, the temperature should reach 30°C on Wednesday, with a Humidex index ranging from 37 to 39. Again, cooler weather with a risk of showers is expected on Saturday and especially Sunday.
Across most parts of southern Ontario, the oppressive heat will continue and will reach nearly 31°C on Wednesday, with humidity ranging between 37 and 39. Temperatures are expected to decrease to 20°C overnight.
Environment Canada is forecasting slightly cooler temperatures for Thursday in parts of southeastern Ontario
Special weather bulletins have been issued. They predict the risk of severe thunderstorms Wednesday afternoon and Wednesday evening, particularly in the Sarnia, Windsor, Waterloo and Elgin areas. The winds will be strong and there is even a risk of hail and tornadoes.
The oppressive heat will lead to a drop in air quality in the country. This could reach the high risk category, indicates Environment Canada.
The federal agency reminds to monitor the effects of heat illnesses which can affect the population such as exhaustion, heatstroke and worsening of certain health conditions.
It is recommended that you drink plenty of water and stay cool if possible.
< p class="e-p">Environment Canada issues a heat warning when very hot or humid conditions may pose a high risk of illness, such as heatstroke and exhaustion.