My rule of thumb for hunting pheasants when it’s wet out is pretty common sense, they’ll be where they can keep dry. Like someone else said that usually means deep in some nasty cover. However sometimes they’ll be pretty bunched up in that cover and when you find them the shooting can be very good.
Wind is the condition that is the biggest pain in the butt in our location. If it really cranks up its not only miserable, they are hard to hit when they do get up and tend to hold really tight. On a day with a strong wind roaring out of the north look for them hidden next to the south side of rows of cedar trees.
I actually like to hunt when its crappy out, its those nice sunny days when they are scattered all over the place that they seem to be the most difficult to work.
Opening day here on Saturday, forecast is for upper 60s.