I would leave them out in the rain. It's ACID RAIN anyway and MJ loves ACID SOIL so where is the prob? They would get it in the wild anyhow and suffer no ill effects.They should be able to handle a bit of wind too if they were wind stressed enough when they were small. Short of a TORNADO heading at your grow...no worries..... just let mother nature raise your babies. Take 1 or 2 plants 12"-18" tall to the mountains and plant them all summer long in the elements and come back in POT-OBER to harvest . WOW! Mother nature is a great nanny.