Introducing Motion Weather 4K: The most insanely beautiful and innovative weather application ever conceived. Motion Weather 4K turns your Wallpaper into breathtaking Cinema quality 4K video based on the Weather conditions outside — and is an excellent weather application in it’s own right. Motion Weather 4K also “knows” when it’s day time and night time and automatically switches to night time 4K videos when it’s night outside! We’ve spent countless hours shooting and licensing some of the highest quality 4K videos in the world to deliver an experience like no other; and then spent even more time developing the app itself.