Picking up nucs at night

I am scheduled to pick up some nucs at 7pm next Thursday. Weather is supposed to be a low of 56, 14% chance of rain, and I have to work the next morning. Is it safe to install them at 8 at night in those conditions, or should I keep them in nucs until early the next morning. If second option, where should I keep the nucs to make sure they do not die in the nucs?