What is a high temp for a baby?

Most doctors - and the American Academy of Pediatrics (AAP) - agree that a normal body temperature for a healthy baby is between 97 and 100.4 degrees Fahrenheit (36 to 38 degrees Celsius). If your baby's rectal temperature is above this range, he/she has a fever.

If your baby is less than 3 months old and has a temperature of 100.4 degrees Fahrenheit (38 degrees Celsius) or higher, call the doctor immediately.

For a baby between 3 and 6 months old, call if his temperature reaches 101 degrees Fahrenheit (38.3 degrees Celsius) or higher.

If your baby is 6 months or older, call if his fever reaches 103 degrees Fahrenheit (39.4 degrees Celsius) or higher.