What tempature do i have to keep my incubator for duck egg?

keep them at 97 to 100 degrees. 100 is the perfect ideal number. Keep humidity in the chamber so the eggs don't dry out. ( a wet paper towel in a dish, or several of them) Ideal humidity about 45% as read on a digital for radio shack. ...Turn your eggs 1/4 of a turn every 3 hours during the day (not necessary at night while you sleep) ...Remove any cracked eggs or they will rot and smell in the incubator, and introduce bacteria in there which is bad for the other duck eggs. Duck eggs take 28 days to hatch. give or take a day. Good luck.