Stay outside or move inside?

So I have a few plants in 15 g fabric pots here in Maine. They are doing fantastic. Longbottom leaf, silver haze, strawberry blue.
My concern is that these strains won't make it to completion before winter sets in. At this point, they are almost three feet tall, so if u am going to bring them inside, I'd better do it soon. Should I bring them in or risk winter?

Depends on your space inside ....if you have the space for them to grow to flower them inside and your certain weather will hurt em ....it's a pretty easy decision IMO .....there's no way you can protect them outdoors ...small greenhouse maybe to keep em dry?