RE: hunting in rain
To put it in perspective, deer live outdoors year round.A little rain would not deter them from their normal patterns. What they are is a walking barometer. With the heavy rains coming, I'm sure they will be feeding.I'd make sure I'd behunting the hours prior to a heavy wash.
If it's a light rain, stick with the ground stalking. With the wet leaves, it's very easy to sneak up on them.