Good afternoon and say goodbye to the 30's. We kicked off Saturday morning with a high temp in the low 40s but ever since midnight, temps have continued to fall. We kicked off the 6 pm news tonight with temps in the 30's and by the time the 11 pm news starts, we will be in the low 20's. Temps similar to Saturday will have a high temp top out in the morning hours as temps fall throughout the day. We are likely to have a sub-zero windchill starting at 6 pm tomorrow and we won't climb above this until Wednesday afternoon. At the peak, windchill could reach -20°. Temps will fall Sunday night to below zero with wind chills Monday morning -10° to -15°. Wind chills won't climb above 0° at all Monday so cover any exposed skin as frostbite can form in as little as 30 min. The arctic air will finally subside by the end of the week as temps climb back into the 30's by Thursday.