Some of the coldest temperatures of the season will be the headline as we head into tomorrow as an arctic airmass over Canada heads south for the weekend. Highs are only expected to reach the teens to low 20s. Winds will be gusty with sustained winds out of the northwest at 10-20 mph. This will cause wind chills to plummet below zero or to the single digits on Saturday. Lows are anticipated to be in the single digits with some locations going below zero.