Right when I started I couldn’t find a decent monospaced font without a strike on the zero so I took my favourite at the time, Roboto Mono and edited it in FontForge.
SVG images can be imported as font glyphs so I set about it on my font. I made some edits in Inkscape so I had distinct few/scattered/broken clouds.
Now, If I am using the font anyway for other text fields, I don’t need to import images for the various weather states. I can just use: $#WCCI#==1?ƀ:$$#WCCI#==2?Ɓ:$$#WCCI#==3?Ƃ:$$#WCCI#==4?ƃ:$$#WCCI#==9?Ƅ:$$#WCCI#==10?ƅ:$$#WCCI#==11?Ɔ:$$#WCCI#==13?Ƈ:$$#WCCI#==50?ƈ:$
I think you meant like golden sun, blue rain drops, gray shaded clouds etc.
With facer we can not use the colored fonts (even those have limited color resolution), only BW .ttf
If the icons were cut out from square boxes, the font could be used as mask above colorful background, but that is something different. Wheather HD px | FontStruct
I did a bit of research here and found a few sites where it is easier to find free weather images than sites that use the free keyword because they have one image in the forest of paid. You can drop the stock weather element in and replace each of the images with your own I think. They have static ones too.