Pisaurina mira
(Nursery Web Spider)

No, but it wouldn’t mind being in a barn. This is the kind of spider that actively goes out and hunts, rather than sitting in a web waiting for prey to get trapped. I can’t see the eyes and markings well enough to be sure of what it is. The cephalothorax looks like a wolf spider, the pedipalps look like a nursery web spider, which is related to fishing spiders.