# WeatherFX

> Outdoor weather conditions, heat stress estimation, and work/rest guidance. (iPhone/iPad app by Antikytherus.)

- Source: https://appshunter.io/ios/app/weatherfx/id539498084 (this page in markdown: same URL + `.md`)
- Developer: [Antikytherus](https://appshunter.io/developer/539353630)
- Category: Weather, Health & Fitness
- Price: $0.99
- Rating: 2.20/5 from 16 App Store ratings · 14 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.0 · 2 MB
- Languages: American English, Afrikaans, Dutch, French (France), European Portuguese, European Spanish
- Released: 2012-08-30
- Data updated: 2026-09-09
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/weatherfx/id539498084/reviews.md

## What is WeatherFX?

WeatherFX is an app that is helpful to people who either work or play outdoors.
Features:
• Current International Weather Conditions
• Up to 5 days of forecast data
• Map with your location and closest weather station
• Heat Flag Condition
• Fluid Consumption and work Rest Ratios
• Manual and Random Estimations
• Spanish, French, Portuguese and Dutch Languages
• Locale Support for time and measurements
  
  The app can provide guidance on work/rest ratios and fluid intake due to high temperatures. WeatherFX is an app that can retrieve temperature, barometric pressure and relative humidity based on the iPhone/iPad GPS data. The app will also approximate the wet bulb and wet bulb globe (WBGT) temperatures from the retrieved values. Please note that the WBGT is just an estimate. The estimate does not account for wind or low light conditions. The estimate is based on a moderate amount of sunlight. True WBGT can only be acquired through WBGT instrumentation. 
  Once you accept the prompt to acquire the GPS position, the Latitude and Longitude labels will be populated. Click the “Update” button and the app will populate the temperature, pressure and humidity text fields based the closest weather Station ID to your position. The app will then calculate the wet bulb and WBGT temperatures. You'll also notice that the WeatherFX app will place the location name and time of the reading at the top of the screen. This way you will know if the readings are in your location and timely. 
  Besides acquiring the weather from GPS you may get your own estimates for wet bulb and WBGT temperatures by typing temperature, pressure and humidity into the respective text fields. Click the “Manual” segmented button, enter the white fields followed by clicking the “Update” button. 
  The app will also compute random numbers for temperature, pressure and humidity clicking the "Shake" segmented button.  The device may be shaken and new settings will populate the fields.  Click update button and the random wet bulb and WBGT temperatures will be computed.  
After an update has been executed, you may use WeatherFX to quickly convert temperatures from Fahrenheit to Celsius and vice versa by clicking the desired “°F” or "°C” segmented buttons. Barometric pressure may be converted from inches mercury to millibars and vice versa by clicking the desired “in” or “mBar” segmented buttons. 
After an update you will be presented with a flag condition button on the bottom left of the screen. The flag condition is derived from the WBGT estimate. If the flag condition is not “NONE”, you may click on the condition to yield work to rest ratios and water consumption given the current estimated flag condition. These figures are posted as a quick and portable reference only. Guidance for these figures are acquired from the U.S. Marine Corps Order 6200.1E dated June, 2002. You are strongly advised to read the complete guidance to know what each entry means.

## Key features

- Current international weather conditions
- 5-day forecast data
- GPS-based weather station identification
- Wet bulb and WBGT temperature estimation
- Work/rest ratio and fluid intake guidance
- Manual and random weather estimations
- Temperature and pressure unit conversion

## Chart rankings

- #38 in Top Paid · Weather (US App Store)

## Recent user reviews (10 of 14)

All indexed reviews: https://appshunter.io/ios/app/weatherfx/id539498084/reviews.md

### 4/5 — No customer service

*2026-07-27*

I got the App, paid $2 for it. I’ve been using it for about two weeks and then just got charged $11.74 out of the blue and there’s no where to get help on the App.

### 1/5 — Inaccurate Wet Bulb Calculation

*2025-06-24*

This app provides inaccurate wet bulb temperature estimates.

### 5/5 — Legit

*2025-05-30*

This is the only app that provides Wet Bulb measurements and it uses WBGT to give real-time USMC flag conditions.

### 1/5 — Useless weather station

*2024-08-29*

The only weather station is a couple hundred miles away. Useless.

### 3/5 — Mostly Good

*2023-07-08*

I would rate this app as excellent, except it falls into the trap that many apps (and organizations) do that use an severity scale. WeatherFX doesn't show the scale, so you're left to guess what the colors mean in relation to each other. Is red worse than black or is it the other way around? Why do I have to guess at this? A simple depiction of the scale anywhere in the app would fix this fatal flaw.

Note to developer: Please fix this. An simple image would do. It doesn't need numbers against it. Just show the colors in order.

### 1/5 — No longer updates GPS with current iOS

*2023-06-20*

Fraudulent sale. Should be pulled from App Store.  Where is Apple quality control??

### 1/5 — GPS not working

*2022-07-25*

Opened the app and it gives a location far from where I live with no ability to choose locations. Not good

### 1/5 — Wish I could give it a zero

*2021-09-01*

As others have said, the GPS does not work. It won’t even let me enter my own latitude and longitude coordinates. Absolutely useless to me unless I visit central Indiana.

### 2/5 — Can’t change the location

*2020-08-18*

It’s set for one address. I moved and can’t change it to show conditions at my new location. Still seems to be working fine for the old location, futilely.

### 1/5 — HVAC guy

*2015-10-01*

Terrible app. No way to change location by zip code and location services was 1000 miles off

## Frequently asked questions about WeatherFX

### What is WeatherFX?

WeatherFX is a paid weather application that provides current international weather conditions, up to 5-day forecasts, and estimates heat stress indicators like wet bulb and WBGT temperatures. It offers guidance on fluid intake and work/rest ratios for outdoor activities.

### How does WeatherFX estimate WBGT temperatures?

WeatherFX estimates WBGT temperatures by retrieving current temperature, barometric pressure, and relative humidity using your device's GPS data and the closest weather station. It then calculates the wet bulb and WBGT temperatures based on these values.

### Can I manually input weather data into WeatherFX?

Yes, WeatherFX allows for manual estimation. You can enter temperature, pressure, and humidity values directly into the respective text fields and click 'Update' to compute wet bulb and WBGT temperatures.

### Does WeatherFX support different languages?

Yes, WeatherFX supports multiple languages including Spanish, French, Portuguese, and Dutch, along with locale support for time and measurements.

### What kind of guidance does WeatherFX provide for high temperatures?

Based on the estimated flag condition derived from WBGT, WeatherFX can provide guidance on work to rest ratios and water consumption. These figures are a quick reference based on U.S. Marine Corps Order 6200.1E.

### What devices is WeatherFX compatible with?

WeatherFX is compatible with iPhone, iPad, and iPod devices.

### How often is WeatherFX updated?

The latest version of WeatherFX is 5.0, and it was last updated on October 18, 2015. It is important to note that this version is from 2015.

### What is the price of WeatherFX?

WeatherFX is a paid application priced at $0.99.

## Version history (last 5 releases)

### 5.0 — 2015-10-18

This update from Apple will improve the functionality of this app. No new features are included.

Updated for iOS 9.0

### 4.3 — 2015-05-23

Up to 5 days of forecast data.

### 4.2 — 2015-03-29

Updated location and motion for iOS 8.

### 3.1 — 2014-02-27

Minor Spelling Corrections.

### 3.0 — 2013-11-21

Updated to iOS 7.  Added translation to Nederlands.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-09.*