In a notice issued on Saturday afternoon, the weather agency said an Alberta clipper would bring wind gusts between 60 and 70 km / h starting Sunday morning.
“The winds will then strengthen on Sunday evening with gusts of up to 80 km / h,” Environment Canada said.
The regions of Halton, Peel, York and Durham are also the subject of a special weather report.
It will be cloudy with a high of 8 C and a low of 0 C on Sunday in Toronto.
Showers are expected in the morning, while a few flurries and local blowing snow are expected in the evening, Environment Canada said.
Winds will ease Monday morning, according to Environment Canada. It will be sunny on Monday with a maximum of 6 C.