Find out what the laws regarding such situations are, there should be no issue if you're playing for a couple of hours at that volume around that time.
In several towns around here the law is if they (law enfircement) can hear it from the street they can shut it down.
Where I grew up the law is three complaints. If three different phone numbers call to complain, you are shut down, no matter what time of day it is. It can be a Saturday afternoon pool party. Doesn't matter.