Thinking of a new gadget...

[jtopiso_imp]

Ok, while still waiting for the parts started tinkering with the housing. Attached pictures show renderings of front and rear view. Front window will be made of acrylic or polycarbonate. Housing will be filled with electronic grade water-clear silicone to seal from the elements. Ambient light sensor will face downward, buried in silicone but close to the surface. Next step is to have it 3D printed (or print myself if I'm brave enough) to see how it fits.

Regarding the housing, why don't you buy one of those clocks or thermometers which clamp on the handlebar, and use the casing to put your gadget in it?

for example:
https://alexnld.com/product/22-28mm-moto...bar-mount/

You can use that, and then 3D print the internal structure so your electronics fit nice into that.
I think it will give you a cleaner installation. I'd buy one! (if in Celsius )