I moved my 4 week old chicks from the house to my unheated garage today in an insulated coop with a heat lamp and heat plate. They have been fine all day with our outside weather temp of 47* in WI. Under the heat lamp it has been around 82-84* I’m wondering if I should bring them back inside my house tonight as the low is supposed to be 30 degrees. Will they get too cold tonight? This is their first day out of the house.