Perigord Noir, we’re surrounded by dense and extensive forest here. It isn’t cooling down much at night - 8-10 degree dip. As to the moisture, you’re right, it

Perigord Noir, we’re surrounded by dense and extensive forest here. It isn’t cooling down much at night - 8-10 degree dip. As to the moisture, you’re right, it does go somewhere - dew. I’ve been contending with water dripping off the telescope there’s so much of it - and when the sun comes up, it all evaporates and sits around until the sun sets and it starts condensing again. Edit: today, it isn’t evaporating. 1pm, 34 and rising, but not hot enough to add more moisture to the air yet. Normally, there’d have been a storm to break the cycle. Makes for surprisingly good astronomical seeing, however - very stable atmosphere.