What do you think we are, rednecks? Well, that's reasonable, but yes, we will have bathrooms, they even include a door ;)
The temperatures tend to dip down at night, so a jacket/sweatshirt, and even a blanket may be wise. We will have limited blankets/quilts available.
The weather is usually mid-high 70's, possibly into the 80's. The ceremony is at 5 p.m., so you can expect the sun to still be very bright. Sunglasses, as well as sunscreen would be great idea.