My husband and I are planning a vacation to the North Fork Flathead River area next year. We are planning on renting a Forest Service cabin; probably one of the ones outside of Polebridge. I have a few questions for anyone familiar with the area.
We were planning on a July trip, but I've read that many if not most July days are over 80 and even up into the 90s. I live in San Diego, I want to escape the heat

Fall is out because I don't want to be there during hunting season. So we are looking at late May or early June. I understand that's the "rainy season," but it looks more from my reading like it's more like lots of clouds and occasional rain. Is that pretty accurate? What's our likelihood, if we are staying five or six days, of getting at least one that is sunny?
Are black flies and mosquitoes much of a concern that early in the year?
I am assuming our timeframe would be a bit early for wildflowers; is that correct?