You will have fabric leaders that you wont want to get wet.
Mine is hooked up to a lazer light and a stitch regulator so lots of wires.
Thats alot of money to invest to take a chance on the weather. You could have rain when you are not expecting it.
Mine also has shelves made out of a heavy material but I would not take a chance on getting them wet.
It also has a million screws holding it togather and the ends could get water inside the rods.