Will frost damage young bench grafts?

I just planted 50 of my bench grafted cherries last week. This morning I woke up to an unpredicted frost. Tonight they issued a warning so it may be harder yet. What are my chances?

All resources are going towards protecting the garden, so the trees will have to fend for themselves.

I had severe damage and tree loss last yr from 23F on rapidly growing young trees. 28F not likely an issue. 24 and below might be depending on how much growth they have and how fast they are growing.

I don’t think I’m actually going to freeze, so I might be good. I just remembered reading somewhere about new grafts being extra sensitive.

Above 32 there shouldn’t be any issues even on new grafts. But I usually error on the side of caution if possible.

My experience is limited, but grafting success with stone fruits has always been much better with warm temps during initial callus period.