It seems as though Ontario cannot get a break from snow...
Sunday areas located southeast of Lake Nipigon will likely see snow squalls. Amounts will range from 5 to 10 cm by this evening. Then another 5 to 10 cm is possible overnight.
An additional 10 to 20 cm possible by Monday evening, and another 5 to 10 cm by Tuesday morning.
Then on Monday Southern Ontario may see about 5 to 10 cm of snow from Windsor north to the nation's capital.
Amounts may be higher near Lake Erie, Lake Ontario and near the St. Lawrence River.