I just set my very first batch of 21 barnyard mix eggs in a still air hovabator on Sunday. Last night, after the hot day we had, hubby left a window open in the kitchen and it was enough to pull the 101 temp in the incubator down to 98.6 as of this morning. I've bumped the incu back up, but am afraid this may be too late. Argh! I know the eggs can take some variation and I have no way to know how long they were at their lowest temp. So I just have to wait to find out if they make it- such anxiety over eggs!