I’ve killed a few good deer in the rain. The only time I dont hunt the heavy rain is archery. I hunt hard just before and just after the storm system. Killed a real good archery buck after a 3 day storm a few years back. Oct 23 I got in my stand around 10am. Somewhere around 11 am the rain tapered off. Between 11a -1p, I passed up 2 does and 12 little bucks when he came thru. Arrow thru the lungs and he ranked #98 on the all time list for my state. HEAVILY pressured public land deer.