I have not opened the breaker panel to get a better look yet. I really don't want to turn off the main breaker during the week when it's hot outside. I will take a look this weekend.
There isn't anything else that isn't working. There is an outside light attached to the house near the affected receptacle but that is fine. There is a dehumidifier under the house but that has its own separate GFCI and it just got checked recently and everything works there. Unless there's another junction box under the house or under the deck I don't think anything else is hooked up to this breaker.