Placing outside after Pruning?

New member here. Been attempting bonsai for four years now (still not good at it, just recently have gotten my only surviving juniper to live one year in my care)
My question is: I just trimmed back the dense overgrowth I had let go all summer. I thought I've heard somewhere, that after pruning, the tree should not be left outside in the cold or in the wind. Both of which are currently happening tonight after my trim up. Should I bring "Jun" back inside for a few days? She is some kind of juniper, bought from a good source as a cutting. Still has young foliage.

Juniper should pretty much always stay outdoors. Question is of course.. What do you call cold. If you are talking typical fall weather with lots of rain, you should be fine.

Ya in central Oregon right now it's in the 25-34 range for lows and highs in the fifties.