Juneau is part of a temperate rainforest which means it rains, a lot! Most Alaskan’s stand by their Xtra Tufs. Something that is water resistant with good tread is the best bet though. If you aren’t going to go for the waterproof (nothing is really waterproof here in Southeast Alaska) then we suggest something that will dry quickly and mud will wash off easily.
Is is a good idea to also have a change of footwear if your shoes and socks do get wet. A pair of sandals work great for airing out the feet.