Question: is 99 a low grade fever in adults?
Answer: Some experts define a low-grade fever as a temperature that falls between 99.5° F (37.5° C) and 100.3° F (38.3° C).6,7 According to the U.S. Centers for Disease Control and Prevention (CDC), a person with temperature at or above 100. 4 °F (38° C) is considered to have a fever.