Big temperature drop on the menu this Thanksgiving for millions across the US

A blast of Arctic air is set to sweep across the country just as millions take to the roads and skies to gather for Thanksgiving. Parts of the Rockies and Plains are already feeling the chill, but the dramatic drop pushes east midweek as cold air spills into the Midwest, the South and eventually the East.

​ A blast of Arctic air is set to sweep across the country just as millions take to the roads and skies to gather for Thanksgiving. Parts of the Rockies and Plains are already feeling the chill, but the dramatic drop pushes east midweek as cold air spills into the Midwest, the South and eventually the East. Read More Breaking News, Latest News and Videos | CNN