An area of low pressure will approach Ontario on Sunday from the west. It will impact southern and Northeastern sections of Ontario, and then Quebec.
Heavy rain is expected for the area. The heaviest rain is expected to fall in Southern Ontario. Rainfall amounts will range from 25 to 50 millimetres.
There is also a risk of thunderstorms on Sunday. Some thunderstorms south of the GTA could approach severe limits.
Rain will continue on Monday with additional amounts of 5 to 10 millimetres expected.