Down below tonight, that frozen dome of air making its way across the country is creating dangerously slippery paths for millions of people, the roads, the sidewalks, almost icing over as you watch.... See More
Down below tonight, that frozen dome of air making its way across the country is creating dangerously slippery paths for millions of people, the roads, the sidewalks, almost icing over as you watch. Abc's meteorologist ginger zee says there is another storm now on the way. Reporter: Subfreezing and subzero. Feels like minus 11 right now. 17 below. Reporter: The arctic chill digging deep from the great lakes to the northeast, temperatures up to 20 degrees below average and frozen in fargo, just one of so many places that has seen single digit high temperatures or below for a full week. Minnesota has been one of the coldest spots in america. Meteorologist ben berry showing us how frigid. It's a balmy 7 degrees below zero. Because it's so cold we thought we would try a little experiment. It's been about 30 seconds. Watch what happens. Pure ice. In south dakota it's a long stretch of indoor recess. It's a long week since we've been outside. With kindergarteners it's crazy. Reporter: Let's get straight Everybody talking and hearing about it this weekend. A couple of low pressure system are going to converge together and give us the chance of seeing snow in chicago from friday into saturday. Cleveland that's all snow. In the northeast this is the part we have to watch and fine tune as we get closer because right now it looks like major cities along i-95 rain and snow mix but if we move south this could be a mess for the weekend. You are right out there night after night. Thank you so much for being in the cold for us. Ginger zee reporting in.
This transcript has been automatically generated and may not be 100% accurate.