I was in Clark Fork area last weekend, and while there were definitely patches of snow (some substantial) at and below 8000 feet, it was melting fast. Otherwise, it was already pretty dry and warm (except for the running water, brrrr). I bet that road opens (road to Lost/Sword Lakes already open). Curious (future trip planning), what are you doing for your 3 day loop?
edit: OP, awesome pics and trip! Sorry to diverge... my trip to Clark Fork was with my 6 yo, his first backpack trip, a total blast.