Just keep in mind that West Yellowstone's climate is subarctic (by virtue of its elevation), so it will get colder than you are used to in the winter. At your longitude, you would have to get into far northern Ontario or Quebec before you found a subarctic climate, although West Yellowstone would still be (on average) warmer in the winter than those locations are. Though in terms of climatic extremes, West Yellowstone has recorded the coldest temperature of any populated community in the lower 48 states.
The climate in somewhere like Rexburg, ID or Idaho Falls would probably be more manageable, though the surroundings are less scenic.