If you mean the tank itself (no carto in it) I dont think weather will affect it atleast not in my experience. The only thing I have ever noticed with hot weather is more flooding and leaking with the carto. I think this is because if you have a carto tank full of
juice and its left in like a hot car or in direct sunlight on a 90 degree day etc the air inside the tank expands due to the heat and when the air expands it forces the
juice into the little feed holes more than it should hence flooding the cartomizer to the point where it starts to drip out of the bottom. I learned this last summer when I left my tank out in my car on a hot day and came out to a total mess! As far as cold temps I havent noticed anything to the tank itself other than maybe the juice in my tank getting a littler thicker and harder to wick. They should make little insulated tank cozies like they do for beer cans for outdoor winter
vaping 