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

I'm another DarkSky refugee (having gone to DS this year after WU trashed their app...). I also use Windy. Of those three, this is the toughest to get into... definitely not the app you'd use to get a quick and easy forecast. But if you want a deep dive into a ton of data with a great deal of customization, this is the app for you. I do wish there was an option for accumulated precipitation by day (maybe there is, again, lots to chew on). I bought gold for the extra options and to support devs.

Wonderful weather app and widget. After Dark Sky left Android, I downloaded 6 or 7 top rated apps to try and find a replacement. In my opinion, this app is by far the best, even better than Dark Sky. If I could make one suggestion... consider adding sun rise and sun set indicators, colored lines perhaps, as an option in the graphic editor.

Brilliant weather app!! All the weather information you need..... on ONE PAGE!! Visual, graphical, and numeric data for the whole week... on the same page with interactive satellite images coordinated with graphical depictions and data numbers. On a small screen phone the numbers and icons are pretty small, especially the wind direction compass making it difficult to read the wind direction. Totally my "go-to" weather app....

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.