As residents take part in 4th of July celebrations this weekend they are reminded of local offices and establishments that will be closed due to the holiday. In Knoxville, all city offices will be closed today in celebration of the 4th of July holiday. The Knoxville Public Library will be closed today and will reopen on Monday, July 6th. The Knoxville Recreation Center will have no fitness classes today through Sunday, July 5th. The Rec Center will also be closed on Saturday, July 4th. In Pella, all city offices are closed today in celebration of holiday as well.