I've generally found that the rain doesn't have an effect on my area deer. We see just as many and we've tagged just as many. In fact, we've generally found that a light rain with generally increase deer movement. The factor that will supress the deer in most of my areas are what we have today.... 40mph winds! I realize that many wll play ethics police and "strongly suggest" that one does NOT hunt in the rain. I say, you just have to be that much more careful about shot selection and you generally won't be tracking very long anyways. Granted in a driving downpour I wouldn't want to take the shot or if darkness is close at hand I wouldn't want to risk it BUT that still leaves many hours in a day one could confidently take the shot. Best advice I could give is to buy some quality rain gear and make yourself comfortable. Besides, even the folks that will tell ya not to hunt in the rain will tell ya that some of the very best hunting can be as soon as the "storm" passes. I'd rather already be in my treestand.