Oh, by the way, there is snow in the mountains, but this does not mean that it is going to be cold. It has been in the high 80's in Lee Vining. It just has been a late snow-melt this year. You probably will not need warmer clothes - just take at least one or two extra pair of socks because no matter where you hike, you will likely have wet feet every day. And be sure to bring wading shoes - there are tons of creeks that you will have to wade until the water comes down a bit. And mosquitoes will likely be bad - bring the head net and DEET.