Here is a quick demo on how to use weather wall shortcuts to put live weather onto your wallpaper! No jailbreak required works on iOS 14.
Step 1: Add both Siri Shortcuts download above
Step 2: Run “Setup iOS Weather” 4 times. Each time you select the same wallpaper for each lockscreen/homescreen day/night. Basically creating 4 wallpapers with unique names.
Step 3: Run “iOSWetterScreen” the shortcut will apply weather to all wallpapers and place them on your homescreen and lockscreen.
Note: when you change your wallpaper it will disable the weather. You have to run the shortcuts again to use it on a different wallpaper.