Im not recomending this.. but our neighbors kept their dogs outside in pens all the time.. and it gets rather cold here during the winter. but their dogs never sufferd any ill causes from it.

dogs do much better then we give credit for out in the elements.
but again,, im not recomending this,, nor do i think its the right thing to do..
i think dogs should be as part as the family and 'with you' not stuck outside.