A hot and humid air mass thatís originating from the Gulf of Mexico will bring with it higher temperatures and humidity. The air mass will see the humidex rise to up to 40 in the Sarnia and Windsor regions. Expect conditions to be hot, muggy and sticky across parts of the province.
However, a westerly cold front will push its way to parts of Ontario by Wednesday making temperatures go back to normal.
In the next few days, there will be a slight risk of rain, lightning and thunder activity in parts of the region, as well.