I have two of the Hikvision cameras, and for at least a couple, maybe three, years they just chunk away. I've had -32 F (never -40 yet) and as high as 100 + (maybe 103) and no problems.
I do use them just to view the area, not as web cameras (yet). but they are on all the time. I'm surrounded by 60' trees and no real view of the horizon. I have an 80' ham tower that I was scheming with another ham about putting some sort of platform up above tree tops and just haven't gotten there, yet.
Let us know how you make out and a link to your view.