I think at this rate most of the snow will be gone. Your biggest obstacle will be if the majority have dropped yet, IMO. Shed hunting involves a lot of luck. The miles you trudge this next weekend might yield 5 sheds but the same miles two weeks from now if you waited might yield those same 5 plus 8 more. Problem is, the critters or another shed hunter or trespasser might find them before you if you waited as well! Danged if you do, danged if you don't, as they say! Lmao
Good luck on your trip whenever you decide!