School boards began announcing closures early Sunday evening as the forecast worsened.
Environment Canada said heavy snowfall would arrive overnight and continue into Monday, creating hazardous travel conditions across the GTHA.
The Toronto District School Board announced that all schools, sites and administrative buildings, including childcare centres, would be closed to students and most staff.
The board also said secondary exams scheduled for Monday would be postponed, adding that schools would share further details directly with students and families.
The Toronto Catholic District School Board confirmed it is closing all schools and board sites on Monday.
“Bus transportation, childcare centres, before and after school programs, and permits are also cancelled,” the board said in a statement.
It added that exams scheduled for Monday would be rescheduled for January 29, while exams planned for January 27 and January 28 would proceed as scheduled.
In York Region, both major boards announced closures. The York Catholic District School Board said all schools would be closed on Monday, with secondary exams rescheduled to Thursday.
The York Region District School Board also confirmed that all schools and board locations would be closed to students.
Officials urged residents to avoid unnecessary travel and continue monitoring weather updates as the storm moves through the region.

