SupercellWX Weather Radar on Raspberry Pi

I have found a way to install SupercellWX on my Raspberry Pi 5! It may be a bit slow, but it works as good as on the desktop PC. Here is how you can make it!

Supplies

1 Raspberry Pi. (3B+ and up, with at least 2GB RAM for good speed.)

1 SD Card (16GB Minimum.)

Linux RPi OS (Preferably Twister OS)

And a MapTiler key.

Install Flatpak

*Make sure to install Raspbian or TwisterOS onto the SD card (Search "Install RPiOS" or "Install TwisterOS")

Open the terminal.

If you haven't installed Flatpak yet, you can install it with the following command:

sudo apt update

sudo apt install flatpak

This will install Flatpak and the necessary dependencies. If you already have Flatpak installed, skip this step.

Install Flathub Repo

Flatpak needs access to a repository (Flathub) where the apps are hosted. Add Flathub to your Flatpak remotes:

flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo

Install Required Runtime

The SupercellWX app requires the org.freedesktop.Platform runtime. Install it with:

flatpak install flathub org.freedesktop.Platform//25.08

This will install the required runtime for the app to function correctly.

Download and Install SupercellWX

Download the SupercellWX linux ARM64 file from here: https://github.com/dpaulat/supercell-wx/releases

Let’s assume you’ve downloaded it to the ~/Downloads folder.

To install the SupercellWX application from the .flatpak file, run the following command:

flatpak install --user ~/Downloads/SupercellWX.flatpak

Replace SupercellWX.flatpak with your downloaded flatpak.

Run SupercellWX

*TwisterOS has OpenGL 4.5

*Raspberry Pi OS has OpenGL ES

To run on TwisterOS and OpenGL 3 supporting Operating Systems:

flatpak run net.supercellwx.app

To run on Raspberry Pi OS/ OpenGL ES Operating Systems:

LIBGL_ALWAYS_SOFTWARE=1 flatpak run net.supercellwx.app

Setup SupercellWX

When you start it, you should see a screen saying "Introduction: Welcome to SupercellWX!"

Click "Next" and press again until you find the screen saying "MapTiler API key".

Go to the website https://cloud.maptiler.com/account/keys/, and copy the default key after you login.

Put the default key in the API key box.

Click next, and set the pane number for your radar. Then, you have now setup the radar!

The radar pane may be black, but you just have to wait for a bit. If it stays black after 30 minutes, try to change the key and validate if the key works.

Add It to the Desktop

Create a new desktop file:

nano ~/Desktop/supercellwx.desktop

Add the following content to the file:

[Desktop Entry]

Name=SupercellWX

Comment=Weather Radar Application

Exec=flatpak run net.supercellwx.app

Icon=supercellwx

Terminal=false

Type=Application

Categories=Utility;

Make the desktop file executable:

chmod +x ~/Desktop/supercellwx.desktop

Now, SupercellWX should appear on your Desktop and, will open the app when it is double clicked.

Enjoy having a basically professional weather radar on your Rasperry Pi!