Man oh man I love hunting black tails in the rain. For me its the best hunting condition's. An old timer once told me that the deer's coat acts like natural rain gear the water will bead up and role off and for the most part the deer's skin will stay dry. Well he told me that in the deep brush the deer get soaked just we do and the water penetrates there hair from being pushed around. And thats why for the most part you will see more deer out in the open like grassy roads, clear cuts and fields when its raining like a cow pissin on a flat rock. The water will role off them and they dont get as uncomfortable from the rain.