Weasel outside the kitchen window

We were just about to sit down for Friday lunch when a weasel ran along the wall and under the kitchen window. With the camera running I walked out the back door, round the corner, and it repeated the move. Was it really a weasel? I slowed the film clip down by half and then by half again and if you watch the film you’ll see there is no black tip to the tail so it can’t be a stoat.