The City of Toronto has issued an extreme cold weather alert, with temperatures expected to dip below -10 C at times Saturday.
Officials are advising homeless people to seek shelter from the frigid conditions, which can cause skin damage if exposure is not limited.
The extreme cold weather alert also means additional resources for the homeless will be available, with community shelters increasing their staff.
During an extreme cold weather alert shelters will also reduce service restrictions and overnight street outreach programs will be enhanced.
TTC tokens will also be available at some drop-ins so people can use public transit to get to shelters.
Extreme cold weather alerts are usually called in the morning when Environment Canada predicts a coming overnight temperature of -15 C or lower.