How cold will it get?

The Artic invasion is about to begin! Two cold fronts are forecast to bring the coldest air of the season thus far to the lower forty-eight. It looks as though the coldest of the air will concentrated in the upper midwest and northeast parts of the country. The thing about some of the computer models used to forecast weather is that they have a hard time handling real cold temps so it will be interesting to see how close to actuality they are this time around.
Yesterdays high was 51 and our overnight low was 29.