A normal temperature is 98.6 F if taken in the mouth, and 99.6 F if taken in the bottom. If the oral temperature is above 100 F or the rectal reading is 100.4 F or higher, your child has a fever.

An oral temperature above 99 degrees Fahrenheit for an adult and 99.5 for a child is probably a fever, the National Library of Medicine notes. But people shouldn't be hung up on a number, experts say.

Ranges of normal temperatures vary widely in the literature, but a guideline of average temperatures for newborns and children is: Newborns: 97.7 to 99.5°F (36.5 to 37.5°C) Children: 96.8 to 99. ...

An oral temperature above 99 degrees Fahrenheit for an adult and 99.5 for a child is probably a fever, the National Library of Medicine notes. But people shouldn't be hung up on a number, experts say.

The established “normal” temperature of 98.6 degree Fahrenheit maps on to 37 ... “And if you really feel you need to know your child’s temperature—if it’s an infant—go up their butt ...