Trying to predict the ice out time now is pretty much like predicting the stock market 10 years from now; next to impossible.... The average ice out is late April. It could be earlier, or even as late as into May. If I were you I would not have firm plans for an ice out in "mid April" unless it's something you can put off for a couple weeks. As for the fishing, the season opens the first weekend in May, and muskies are Memorial day weekend. You can't even fish catch and release for muskies until then.