Regenwetter

das Regenwetter raininess, rainy weather, showery weather

bikes that glow in the dark

For the dark fall and winter days it makes sense to make yourself visible with bicycle lighting and other extra gadgets when you're out riding your bike.
The Austrian Standard is reporting about accessories for your bike that glow in the dark and make you visible.

Let's Glow: Radfahren mit reflektierendem Zubehör

das Zubehör accessory, accessories, equipment, extras