I got some in-the-hive feeders and got them installed/filled yesterday. It was much later than I'd intended but I had to be gone for a few days and of course, nearly all of those days were cold and wet and the ladies weren't flying at all. So, I'm about 2 weeks later than I wanted on my feeding start for fall. My hives were at about 80% of what I want for winter stores last time I checked two weeks ago, but with the cold and the rain they may have consumed some of that. I installed the feeders right on the edge, and to refill I'll have to remove the outer lid, and just slide the inner lid over an inch or two. How cold do you think it can get outside and I can still open the hive in this manner, just long enough to refill a feeder? And with that in mind, I'll want to do a kind of "final check" after they've had feed for a while and see what their stores look like, how cold can it be and still do an inspection without harming the hive? We still have a couple-three weeks of nice weather during the day, mid 60s, but it's getting down into the low 40s at nights now and we're supposed to get our first dip down to freezing on Thursday. Also, my husband had the idea of trying to snake a tube into the hive, if we could get it so the lid wasn't propped open at all, and be able to refill the feeders without opening the hive at all. So we're thinking we can go pretty late into winter with the feeding if we do that, and start feeding awfully early in the spring, but I don't know if leaving that empty feeder in all during the coldest part of winter would be good for them. What do you think?