temperature to incubate chicken eggs
1 Temperature: Chicken eggs should be incubated at a temperature between 99 and 102 degrees Fahrenheit (99.5 is often considered to be ideal). 2  Avoid temperatures outside the 97â103 Â°F (36â39 Â°C). 3  range. 4  If the temperature remains beyond either extreme for several days, hatchability may be severely reduced.efore you begin to hatch your chicken eggs, make sure to read all of the instructions in the incubator's instruction manual. Make sure you know how to operate the fan, the light and any other functions. 1  Use the thermometer provided to check the temperature of the incubator.