Heat Index Calculator

Calculate the heat index (feels-like temperature) based on air temperature and humidity.
%
Feels Like (F)
Feels Like (C)

Features

  • Calculates Heat Index (felt air temperature) based on actual temperature and humidity.
  • Supports both Fahrenheit and Celcius inputs.
  • Uses the National Weather Service (NWS) algorithm.
  • Displays risk level indicator (Caution, Danger, etc).

How to Use

  1. Enter the current air temperature.
  2. Select the unit (°F or °C).
  3. Enter the relative humidity percentage.
  4. The tool automatically updates the "Feels Like" temperature.