Much colder air is filtering into the eastern half of the country. This link to Accuweather shows just how far south this air mass will travel. We will have some pretty cold conditions here with a low tonight expected in the upper 20's. Tomorrow night will see temperatures fall all the way into the low to mid 20's. This should give us a good hard freeze. The extended outlook is calling for a mild Turkey Day with much colder weather the first week in December.