Coming Home Outfit - What do you think?

Emily
Looking for a coming home outfit and I don't need it to be fancy - mostly searching for a side snap tee as I hear they are best for newborn belly buttons. We are waiting until birth to see if we have a boy or girl, so this fits the bill. ☺️ My only concern is that I don't know how to dress a baby weather-wise. I probably wouldn't use the onesie - just the long sleeve side snap and long sleeve footie pants. Is this too much for July in the Midwest?