We were invited by some friends of ours to their wedding in WI this May, and were driving there.…

We were invited by some friends of ours to their wedding in WI this May, and were driving there. Molly will be 9mths by then and I've never been cross country before. How do ya handle such a long trip? Plus once we get there anyone from the Milwaukee area know what the weather is like in mid May? Pack long sleeve and sweaters, or short sleeve and shorts? She was asked for by the bride. In fact if the bride could have invited just her she probably would have lol.