Normal body temperature: Typically ranges between 36.5°C to 37.2°C ( 97.7°F to 99.0°F ) when measured orally. Low-grade fever: Body temperature slightly above normal, ranging from 37.3°C to 38.0°C (99.1°F to 100.4°F) when measured orally. Normal human body temperature is determined based on height, weight, age, and other factors. Read more to know about the Normal Body Temperature Range. Normal body temperature ranges from 97° F to 99° F for adults and 95.9° F to 99.5° F for children. Learn what affects body temperature and when to be concerned. Guide to normal , fever, and low human body temperature , with charts and expert tips for accurate measurement and health monitoring.