If it rains, I just put on my rain gear and get on with it. If it's warm enough, I leave the rain gear off and just get wet. My hiking pants and shirt are lightweight nylon which dries very rapidly, even in high humidity. And I have a dry base layer and wraps in my pack. The main thing is to be sure that everything in the pack stays dry and that you don't pitch your tent in a depression that will become a pond when it rains.

The one time I will stop and seek shelter along the trail is if a hailstorm comes along. Fortunately, they usually last only a very short time.