Click on Cruztalking to see some nice photos from our recent tour of the Yellowstone and Grand Teton National Parks. We were serving as tour guides for friends from TN who had not seen the parks before.
As the other DrC says there, the parks are picturesque in early June as there is still snow on the mountains. It was chilly, but not frigid - certainly not short-sleeve weather. We did however see some folks in shorts.
They reminded me of Phil, with whom another guy and I shared a house while in grad school in Eugene, OR. He was from Minnesota by way of Montana whereas I was from CA. He thought Eugene winters were warm because it rarely snowed. I thought they were cold because the sun rarely shone. Quite different perceptions of exactly the same weather.