<p>Outdoor ceremonies make planning tricky. At DD’s graduation all of the nice outfits were left in the hotel rooms while sneakers, pants and plastic rain slickers were the fashion of the day.</p>
Bumping up for 2015.
Depends on the region. Casual is fine in the PNW, midwest wasn’t very dressy (some pretty dressy, but by no means all.
Be comfortable! These things can go on for long, boring hours.