Most healthy adults can tolerate a fever as high as 103°F to 104°F for short periods of time without having problems. Body temperatures usually.
Read about causes of fever in adults, symptoms, treatment, medications that may Low-grade fevers range from about 100 F-101 F; 102 F is intermediate grade.
Fever is part of your body's defense against infection-causing germs. By itself, fever is usually harmless, though a high fever can be miserable.