Re: moved orchids to outside--2 ?s

[pdxmaven]

I moved all my orchids outside this weekend, as the day temps were mid 70's to mid 80's, and nights mid 50's.
Now I see that the night temps are going to be 47 degrees through next weekend. They are on the porch at this point, where I know the temp is always higher than out in the yard, plus on the porch they are protected from the wind as well. I don't have to move them back inside, do I?

My plan was to gradually transition them onto the porch railing, and then those that can take more light, off the railing onto the edge of the driveway abutting the porch.
But I just realized that we always keep the porch light on at night, all night. I know some plants need 100% darkness at night or they won't bloom. How does this work for orchids?

thanks in advance for your help.