I live in Los Angeles where we wear hoodies and flipflops in the rain. I don't really think about being cold. But I know the desert can get really cold at night. My gown is strapless, it came with a satin wrap but it's really more decorative than something that can provide warmth. Do you think I need to get a little sweater or a fake fur bolero or something? Wedding is April 28th - we will be out and about late into the night. Thank you!!