Phragmipedium Grande in the South Californian outdoor?

[PuiPuiMolcar]

I've have looked up that Phrag like grande can handle very bright light almost to those of cattleya, but I wonder if they can handle low humidity aswell? Socal temperature can have warm night in the summer, and it never frost in winter but the humidity where I am can best be at 50-60% on the average summer days.
As for winter, I'll probably might have to bring them in as it can only get around 10-20% this time.

I bought a Phrag. Grande by mistake instead of the Phrag. Humboldtii, I really wanted the long hanging stringy bloom of the slipper flowers. But knowing that the Grande is a hybrid I think I have a chance with it outdoor.