Since you're in a northern state do you have to wear deodorant for this event? I am not a drippy sweating type of person. I can go without showering a couple of days and my pits don't smell. I have found that deodorant can be a habit and not completely needed all the time.
So that's why I asked if you actually have need to wear deodorant every minute of the day. Do you stink after just a few minutes? Do you stink after an hour? Do you smell after a day at the office when the air is turned to 78 and it's hot in your area?
I'd say if you sweat a lot you'd need to apply an antiperspirant but if you don't stink you don't need a deodorant, if you don't stink after just a couple of hours and don't get drippy wet then don't put any on for the wedding.