Check heat index, NOAA weather, and nearby stations in seconds. Compare risk bands, switch units, and see what the air really feels like before you head out every time.
• 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.
This app really works well but I which it would give me some idea of where it is using as a location for reporting the heat index. I touch "fetch", it gives the heat index, and I'm left wondering if it's for Phoenix or Tampa. I'm a pilot by trade and I may see 5 cities in a day and it'd be nice to have some idea of the location it's using. Some idea of the time stamp it's using would also be nice. Is the heat index for now or three hours ago?
Location information is useful
Brasshandle
Heat index to the location is a great addition
Not very good.
GenoS78
Tried using this for HVAC conversion for helping customers to understand what the temp actually feels like. They should put in the advertising that this program can only work with temps above 80. Not good
Suitable, could be better
Jayphics
Fetch feature is nice, but could use accuracy below 40% humidity, say 25% or higher. If possible, Caution feature could indicate amount of work/rest time and amount of water consumption recommended by NIOSH.
This update makes the app easier to use when the weather turns heavy and you want a quick answer.
- The Heat Index screen is cleaner and easier to read at a glance.
- Temperature and humidity entry is simpler to work with.
- The keyboard now dismisses more naturally when you tap outside the fields.
- A Done button is available on the keyboard for faster input cleanup.
- NOAA weather and nearby station data are easier to get to from the same place.
- Station browsing is smoother when you want a local weather check.
- Observation details are laid out so the useful information appears first.
- Forecast and observation sections are easier to scan on iPhone and iPad.
- Search inside station data is better for long pages and dense readings.
- The app makes it easier to compare current weather, nearby stations, and forecast details.
- Heat index values remain available in both Fahrenheit and Celsius for quick checks.
- Local values stay saved so repeat use is faster.
- The result is a cleaner path from input to answer.
This release also makes the station experience feel more like a weather tool and less like raw data.
- XML-style document noise is hidden from the main view.
- Weather content is presented in cleaner, more readable sections.
- Station observations are easier to scan before you head outside.
- Forecast information is easier to compare with current conditions.
- Nearby station data is simpler to read, especially on a smaller screen.
- The app keeps the focus on the data people actually need.
- It is easier to move from a location check to a station check without losing context.
- The station view now feels more like something you can use in real life, not something you have to decode.
The update also improves the everyday flow of the app.
- Manual entry is still there when you already know the numbers.
- Current location checks are easier to compare with nearby NOAA stations.
- The calculator is easier to reach when you need a fast answer.
- The weather information is laid out more like a utility and less like a report.
- You can get from temperature to heat index to station data with less friction.
- It is easier to keep moving when you are outside and checking conditions on the go.
- The app stays practical for work, sports, travel, and summer planning.
- The result is a faster check before you head into the heat.
It is a better fit for outdoor work, sports, travel, and summer planning.
- Less friction when you are checking conditions on the go.
- Better for humidity-heavy days when the air feels worse than the forecast.
- Better for users who want a practical weather app without extra noise.
- Better for quick checks before a run, a game, a shift, or a drive.
- Better for anyone who wants a heat safety tool that feels easy to trust.
- Better for comparing local weather, station data, and forecast context in one place.
- Better for people who want weather information they can use right away.
- Better for a routine that starts with a quick local reading instead of guesswork.
You should notice that the app now reads more like a weather utility and less like a pile of raw data. The station experience is clearer, the calculator is easier to reach, and the results are easier to understand without stopping to decode them.
The update also stays aligned with common searches and everyday use:
- heat index
- NOAA forecast
- weather station
- station data
- humidity
- temperature
- weather safety
- outdoor weather
- summer heat
- local weather
- heat stress
- weather station observations
If you use the app to check conditions before heading outside, this update should feel like less friction and more signal. It is the same practical tool, just easier to read and easier to trust when the day turns hot.
Version 8.2
The developer, Verosocial Studio, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Verosocial Studio
Size
10.6 MB
Category
Weather
Compatibility
Requires iOS 17.6 or later.
iPhone Requires iOS 17.6 or later.
iPad Requires iPadOS 17.6 or later.
Mac Requires macOS 14.6 or later and a Mac with Apple M1 chip or later.
