Finally I made it! after some deletion problems, and file mayhem that I caused on my hard drive. These icons are for the use with objectock's weather docklet. Just put the files in "C:\Program Files\Stardock\ObjectDock\Docklets\Weather\icons\", replacing the existing files. Don't forget to MAKE A COPY of the ones you're replacing! And that's it!
***This are black icons, designed for white and light backgrounds, you can also check the other collection on my profile***
This was EXACTLY what I was looking for for my desktop. You should note that they also work perfectly (without being renamed or anything) for this: [link] So not only did I get exactly what I wanted, but I didn't have to hack it!