The City of Toronto remains under an extreme heat alert with temperatures expected to reach 33 C on Wednesday.
However, it will feel more like the low 40s with the humidex, CityNews meteorologist Adam Stiles said.
“We’re in store for another hot one and a humidex advisory is still in place,” he said.
However, it’s not just a repeat of Tuesday’s weather: Environment Canada has issued a special weather statement for much of southern Ontario, with isolated thunderstorms expected.
There is a “slight” risk the thunderstorms may be severe, the federal agency said, with damaging wind gusts exceeding 90 km/h, two centimetres of hail and heavy downpours.
Click here for the full weather forecast.
During an extreme heat alert, Toronto officials are asking people to call on or visit those who may be vulnerable to the heat, especially isolated adults, seniors and the chronically ill.
The city has opened cooling centres and extended hours at public pools to help residents cope.
Click here for a full list of cooling centre locations.
Click here for extended public pool hours.
GO Transit say the Union 16:48 – Lincolnville 17:59 train trip has been cancelled due to extreme heat conditions affecting the tracks. Passengers will be accommodated on the Union 17:20 – Lincolnville 18:33 train trip.
A cold front is expected to move into southern Ontario late Thursday and will bring temperatures back in the seasonal range.