Flowx: Weather Map Forecast

Flowx Weather App

In-app purchases

About this app

Visualize the forecast with the unique Flowx weather map and graphs. Get superior user experience with all your data on one screen, finger swipe control, multiple data types and forecast models, and absolutely no ads, no tracking.
Use Flowx to plan around the weather, for aviation, fishing, sailing, surfing, cycling, hiking, photography, storm tracking or anyone interested in the weather.

The advantage of Flowx is the ability to easily compare models to understand the weather and what it means for you. Customize your data options and visuals to your preference.

User Experience

Map
Use finger swipe to control the forecast animation over time. Choose multiple data layers to display on the map, and easily switch between models.

Graphs
View the week’s weather forecast data at a glance. Choose from a selection of graphs and use the compare function to view all data sources at once.

Widget
Get a quick update on your homescreen with the graph widget. Choose the graphs and location to display.

Features
GFS, GDPS and ECMWF global forecast models, updated 4 times daily. Plus global waves, air quality and UV index models, ocean data, storm/hurricane tracks, sun/moon-rise/set and USA high-res smoke.

Offline use, no ads, no tracking, minimal permissions.

Pro Version

Gold Subscription includes:
• Additional global model and high-resolution data for North America & Europe
• Up to 16-day forecast and 3-day history
• Radar Reflectivity for USA - NOAA NAM & HRRR
• Graph Editor and other customization options

Note: payment is required to access pro version subscription features.

Data Sources

Data Sources - Free
• NOAA GFS and Waves - Global
• CMC GDPS and GDWPS Waves - Global
• ECMWF HRES 25km - Global
• NOAA HRRR Smoke Data - Continental USA
• NOAA RTOFS Ocean Model - Global
• CAMS Air Quality/UV Index - Global
• Storm/Hurricane Tracks (NOAA & CMC) - Global tropical storms
• Sunrise/set and Moonrise/set

Data Sources - Gold
• Free sources plus:
• DWD ICON - Global
• NOAA NAM3km, NAM12km & HRRR - Continental USA
• CMC RDPS - Canada, USA (incl. Alaska), Greenland, Iceland
• CMC HRDPS - Canada
• DWD ICON-EU - Europe
• DWD ICON-D2 - Germany
• MeteoFrance ARPEGE - Europe
• MeteoFrance AROME - France
• KNMI HARMONIE 2km - Netherlands+
• RMI Alaro - Belgium
• Expedition Marine - Various locations incl NZ
• CAMS-EU Air Quality - Europe
• SILAM Air Quality - Europe

Flowx is not affiliated with and does not represent any meteorological government entity whose data is displayed in the app. For more details see Data sources help page.

Providers of weather data:
NOAA: www.noaa.gov
CMC: www.weather.gc.ca
ECMWF: www.ecmwf.int
CAMS: atmosphere.copernicus.eu
DWD: www.dwd.de
MeteoFrance: www.meteofrance.com
KNMI: www.knmi.nl
RMI: www.meteo.be
SILAM: silam.fmi.fi

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Ratings and reviews

This is one of the most beautiful and accurate radar maps available in the UK. I lived in the US for over 30 years, and in that time I watched the Doppler Radar systems develop into truly outstanding systems, where even a casual weather enthusiast could see and understand what was going on. Sadly that technology does not exist in the UK to the same level of excellence, but Flowx is a very beautifully designed application that allows you to move the radar forward and backward, determining with the best precision available in the UK if it is going to rain or snow where you are looking. You have the ability to add multiple cities, even in different countries or continents. Overall I give the application 5 stars for its beautifully designed GUI (Graphical User Interface) and its beautiful display of weather radar.

Love it. Great graphs and maps. Finally what I was looking for. If you want a really nice and high quality map that is highly customizable with supporting graphs, this is the one. Especially if you enjoy scrubbing through the animation. I finally feel like I'm getting the full picture of the weather, especially the rain. The only way it could be improved if you explained the graph key better. I had to work out the humidity symbol because it looked like rain, it is a little non intuitive.

I think this is a really excellent app - the best around indeed! it has never failed us, on a farm, for years now. much depends on the weather and Flowx does a beautiful job. The amount of detail, the fact that you have a proper map in front of you and that you can display the key weather variables - all this enables you to think with the app about the weather ahead. It amplifies intuition and it is a better partner of dialogue than any other weather report possible.

What’s new

Release 4.126 (25 Sep 2025)
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Disabled radar for free users. I accidentally made it freely available.

More OpenZone improvements.

Improved data checking for downloads and shows warnings when there are failures.

Fixed Flowx opening to 00:00 bug.

Fixed map/graph mismatch bug.

Fixed other minor bugs.

NOTE: RainViewer has decided to stop providing radar data in JAN 2026 so radar will stop in Flowx in JAN 2026.

See forum.flowx.io for more details.