I am unsure of a Temp Rating.
I will tell you, I have used it below freezing in a t-shirt and shorts with no issue.
And have used it as a quilt in similar (inside tent and froze during the night) conditions.
It does have continuous baffles so the down can be moved around, as desired.
It is a good servicable bag that I have used intermitently as I have two other Feathered Friends bags that this sorta fits in between.