After a somewhat rainy and cold summer, high temperatures are making a strong return in the early days of September, as Environment Canada issued heat warnings today, Tuesday, for several regions in Quebec and Ontario, which will remain in effect over the next few days.

Environment Canada also specified in its warning that Tuesday and Wednesday will be particularly hot in Quebec with temperatures that could exceed 30 degrees Celsius and humidity values ranging from 36 to 42, that is about 10 degrees above the normal average.

The federal agency indicated that the heat may persist on Thursday and Friday in the southern regions of Quebec. Some sectors will also be affected by special alerts.

It is also expected to be hot and humid throughout Ontario, including Toronto, Windsor, and Sudbury. The federal agency stated that the city of Queen is expected to experience a rise in temperature to 34 degrees Celsius on Tuesday and humidity levels up to 42 degrees.

Thunderstorms are also expected to develop or move into northwest Ontario from Minnesota on Tuesday afternoon, as Environment Canada warned the public that conditions are favorable for winds reaching speeds of 90 km/h, nickel-sized hail, and heavy rainfall. To this end, Ontario's emergency management recommends seeking shelter immediately if severe weather is imminent.

Large areas of Manitoba, Saskatchewan, Alberta, and British Columbia are under special notices regarding air quality due to smoke from wildfires.

In the same vein, Environment Canada advises people to drink plenty of water, even before feeling thirsty. The organization adds that the risks are higher for young children, pregnant women, the elderly, and individuals with chronic illnesses.

"Also be aware of the effects of heat-related illnesses - swelling, rashes, cramps, fainting, heat exhaustion, and heat stroke - and the exacerbation of some health conditions," Environment Canada stated.

Therefore, the public health agency advises reducing outdoor physical exertion, especially between 10 a.m. and 3 p.m., especially since public outdoor pools have officially been closed since Monday. It also reminds you never to leave pets in a parked car.

Environment Canada also expects cooler temperatures on Thursday with the passage of a cold front. Meanwhile, the federal agency warns that hot and humid weather can lead to a deterioration in air quality.