Find your tuque and mittens — you're going to need them.

Temperatures are expected to drop throughout southern Ontario, including Waterloo region, Guelph and Wellington County, throughout the day Saturday as a polar vortex moves down into the area.

Steven Flisfeder is a warning preparedness meteorologist at Environment and Climate Change Canada who says people will want to bundle up when going outside for the next several days.

"Saturday night into Sunday, you'll start to see those temperatures dr…