you could leave them outside before it frost then bring them in ,
but its slowly starting to get colder now
and to the best of my knowledge plants dont grow as fast in colder temps ..
but if your wanting to leave them outside as long as you can
then your good as long as it dont frost , cause frost can kill your plant ,
hell if anything leave them outside during the day , then bring them in at night ..
im sure other growers will have different opinions for you ...
what i told you is just my opinion my man ...
good luck with your grow ...