Let me clarify, it is already bottled, in one of the large (1 liter?) Mr Beer bottles. I just lost track of this individual bottle, and it has been on a shelf in my garage. The temp in there was mostly uncontrolled (ranging, at a guess from low in the 40's to high in the 80's or so, maybe a bit higher in summer) and it has been there for about a year.
This would have been from a wheat beer kit that I did and it has been bottled/primed and should be carbonated just fine (feels plenty stiff, so it seems to have held).