A body temperature over 100.4°F (38°C) in adults indicates a fever. A normal adult body temperature, when taken orally, can range from 97.6–99.6°F, though different sources may give slightly different figures. A normal body temperature for children aged 3–10 ranges from 95.9.
For a typical adult, body temperature can be anywhere from 97 F to 99 F. You may feel terrible, but on the whole, a fever isn't bad for you.
The average body temperature, taken with a thermometer in the mouth, is 37ºC ( 98.6ºF), but A fever in adults is a temperature of 38ºC (100.4ºF) or above.
For an adult, a fever may be uncomfortable, but usually isn't a cause Adults. Call your doctor if your temperature is 103 F (39.4 C) or higher.