I would assume Montana wouldn't be too friendly to Clinton, especially after seeing her Colorado poll numbers.
I'm kind of thinking along those lines too. The West seems to be Clinton's soft spot, especially now that we have newer polls from states like Florida showing her doing quite well for a Democrat.
It's hard to see Clinton winning Florida by 20 while losing Montana and Colorado.
Stranger things have happened though. I was always under the impression that the West is somewhat of a weak spot for Hillary Clinton while certain areas of the South (like Florida, Virginia, North Carolina, Arkansas and Georgia) were some of the places that she is relatively strong in when compared to Obama.