It is at customer discretion when it comes to weather.
Rain is not a justifiable cause for returning an inflatable late.
It still needs to be returned on time, some individuals have indoor events and it is not fair to them. When it is raining, and time for drop off I will not set up and check the inflatable at that time unless it is has another reservation that has not been canceled for that day. I will check it as soon as weather permits.
If you had a check deposit, I will void or destroy your check and send an email photo of it once it has been cleared. If you had a cash deposit, I will return it to you by mail; or you can return in person for it as soon as it has been cleared and checked.