Consumers Fresh Produce in the Strip for a Pittsburgh solution. Presque Isle and Walkers Fruit Basket for local juice around Lake Erie. We love going to Walkers for the juice, then we hit a few wineries and breweries on the way back home. It's a great day trip from Pittsburgh. Further up, Fulkerson in the Finger Lakes sells juice as well. CFP has orders going on right now for Cali juice, I picked up six gallons of Chardonnay last week.
As for local juice, from reading blogs for Lake Erie, the last two winters have brutalized the Hybird and Vinifera. Many places aren't selling those to winemakers as they are struggling to meet commercial orders. On the plus side, sweeter natives juices like Concord and Catawba will be available soon, if they aren't already.