I kinda like riding in the rain, watching the streams of water peel off the front wheel and dance in the visionstick's bright beam, listening to the sizzle of the tyres buzzing through surface water. Mostly it reminds me of when I was a kid, splashing thru puddles and having loads of fun.
Mind you, I've come down hard in the wet and it's not quite so romantic. And it's definitely a no-go zone if your sick or if the wind is coming off snowfields with anger