Do you ever wonder what the current Heat Index is outside? Just plug in the temperature (in degrees Fahrenheit or Celsius) and either the relative humidity or dew point and find out!

Easy to use, simple and free. Try it out and let me know what you think.

Note: Heat Index formula is only valid when temperature is above 27° Celsius (80° Fahrenheit).

Features List:
-Calculates current heat index using temperature and relative humidity or temperature and dew point.
-Celsius and Fahrenheit both supported.
-Numerical input keyboard