I'd re-think about booking a balcony cabin, especially in Alaska. We only had one afternoon of rain in Juneau the entire week we cruised up there. The scenery is absolutely breathtaking, you don't want to miss a thing, a balcony for Alaska is an almost must if you can handle it, don't think you'll regret the extra expense.
We really did spend a lot of time out there with the binocs and just watching the beautiful mountains, dolphins and even spotted killer whales, and would of missed a lot of that by not having a balcony..
Anyone else agree with me?