A tall proud line up on a hill. It dries fast, so there's no excuses to be had. You dragged your pads all the way up here, so you may as well commit to those scary moves above that slab. Bring some spotters and some courage!
Rain sucks, but broken holds suck even more. Remember, never climb on wet rock in Fontainebleau.
The sandstone becomes brittle, and pulling on it will ruin classic problems. Drying it doesn't help, because it's still wet and weak inside.
All you can do is wait for better conditions.