Environment Canada has issued a snowfall warning for much of southern Ontario and school bus delays are expected.
Forecasters say heavy snowfall will start late Wednesday morning with a total of 15 to 20 centimeters of snow.
The weather agency warns of a rapid accumulation of snow, reduced visibility and the possibility of power outages.
A number of schools have decided to remain open on Wednesday and families are urged to follow bus timetables for delays.
Hamilton-Wentworth District School Board: All schools and daycare centers will remain open on Wednesday. The school board says families may experience bus delays during the afternoon commute.
Hamilton-Wentworth Catholic District School Board: HWCDSB has not announced whether it will be closed or open on Wednesday.
Halton District School Board: HDSB reminds students to dress for winter and check for school bus delays and cancellations.
Halton Catholic District School Board: The council announced that school buses are running and that all schools are open on Wednesday.
Niagara Catholic District School Board: The NCDSB made the decision to cancel buses and keep schools open on Wednesday.
Niagara District School Board: DSBN has announced that transportation is also canceled and secondary exams are moved to Thursday.
Brant Haldimand Norfolk Catholic District School Board: Schools will be open, families are asked to check for bus delays before leaving home.
Grand Erie District School Board: The school board has not announced whether they will be closed or open on Wednesday.
This list is regularly updated. Please check for updates on closures and cancellations.