ALSO AFFECTING the 401 Macdonald-Cartier corridor
A period of hot weather continues tonight. Cooler temperatures are forecast for the weekend.
Overnight lows tonight are expected to be near 20 degrees Celsius. A cooler airmass moves into the area for Saturday and Sunday with daytime highs remaining below 30 degrees.
Please refer to your public forecast for further details on expected temperatures.
Hot and humid air can also bring deteriorating air quality and can result in the Air Quality Health Index approaching the high risk category.