Heat Index & Category Calc

• Featured by Apple App Store in Weather > What’s Hot for the iPad in 108 countries.

Heat Index & Category Calculator is a straightforward weather app for checking how hot it really feels when temperature and humidity climb.

It gives you a quick answer without making you dig through charts or guess at the risk.

- Calculate heat index from air temperature and relative humidity.
- See the result in both Fahrenheit and Celsius.
- Pull current NOAA weather for your location.
- Load the five closest NOAA stations and switch between them.
- View station observations and forecast details.
- Compare military, OSHA, NOAA, and athletic heat bands.
- Keep inputs saved locally so repeat checks are fast.
- Use manual entry when you already know the numbers.
- Use it for outdoor work, sports, travel, yard work, and summer planning.

Heat Index Calculator stays focused on the information people actually need:

- what the heat index feels like
- whether the day is getting risky
- which station is giving the best local reading
- what the forecast looks like for the rest of the day

If you want a simple heat index calculator with NOAA weather, station data, and a clean layout, this app keeps it practical.