CYSO is sponsored by the Claremont Symphony Orchestra (CSO), a non-profit community orchestra providing FREE concerts to the public. Check out CSO's current concert schedule.
Perhaps the most important parameter is temperature â chicken eggs should be incubated at a temperature between 99 and 102 degrees Fahrenheit (99.5 is often considered to be ideal) and 50 to 65 percent relative humidity (60 percent is often considered the ideal).uring the final three days of incubation, the eggs should ideally be located in a slightly cooler (98.5 degrees) and more humid (65 percent relative humidity or greater) environment to facilitate successful hatching.
Best Answer: Temperature should be 100'F for forced-air incubators and 102'F for still-air incubators. Check the temperature by placing the hatching thermometer at the same height as the top of the eggs would be. The heat source should be adjusted if needed. Humidity should be 58-60% from day one to day 18 and should be increased to 65% from day 18 to day 21. This is important to prevent moisture loss in eggs.