Calculate what the temperature feels like with humidity
The Heat Index (also known as "apparent temperature") is a measure of how hot it actually feels when humidity is factored in with the actual air temperature. High humidity reduces the body's ability to cool itself through sweating, making it feel hotter than the thermometer shows.
Understand actual outdoor conditions before activities.
Assess heat stroke and heat exhaustion risk levels.
Determine safe conditions for outdoor workouts and sports.
Monitor conditions for outdoor workers and construction sites.
Input the current air temperature in �F or �C.
Adjust the relative humidity percentage.
See what the temperature actually feels like with humidity.
Review heat warnings and safety recommendations.