Days where it is raining lightly to moderate[no downpours] most bucks feel safe and slowly move around all day browsing of acorns and what not...these type of days I have seen most of my nice bucks roaming around calmly in the woods...great days to stillhunt ot sit on stand for sure....you wont be able to hear them coming, so keep your eyes open...you would be surprised how many deer move around on these type of days ...they feel safe in light rain...sit tight and be ready.