How hot does a incubator need to be to hach chicken eggs?
Ideal incubator temperature is between 99.5F to 100.5F Temperatures can go higher for short periods of time but over 101F will reduce hatch viability by up to 20%. Along with temperature, humidity is important and should be maintained at a constant 50% until close to day 18 when it should be increased to 75% humidity for the remaining days of hatch.
