Taking a look at two rain canopies or covers for use in your tree stands. The first is an umbrella style, 57-Inch overall width that can mount to any tree. Includes six snap-on tie-down strings and carry bag. It can also be used as a small ground blind.
The second is a more permanent, at least for the length of the season. The universal canopy will keep the elements out and help you stay comfortable during your next outing. The tree stand cover is made of polyester and works on with all treestands, including two-man ladder stands. Easily attaches with 2 push-button stabilizing straps. the dimensions: 44" x 37.5".
Both are good products for lighter rain with not a lot of wind. They wont keep you completely dry, but should from the waist up.