A low-grade fever generally indicates a body temperature that is slightly above normal. There is no formally defined range, but one research article categorized it as between 99.1 F and 100.4 F.

A low-grade fever happens when your body temperature is ... Madeline Kennedy is a health writer for Insider covering a wide range of topics including reproductive and sexual health, mental health ...

An article from Harvard Health suggests that though any temperature above the normal range is ... are grades of fever ...