Curious about outside!

Our coop will be finished this weekend and the coldest temp with be 37 on monday. Other than that it will be 40s-50s! They’ve been off he and in a 60° basement. This chicken momma is READY for them to be out because I’m tired of chasing the leghorns around my basement since they get out of their Gaylord box, but I will miss them. Do we think the 37°F will be okay or wait another week?