Yesterday I spent about an hour cleaning my drive train. I had the chain soaking in mineral spirits for 3 days, then I cleaned it up with a cloth, and soaked it in prolink. Also did the derailleurs and cleaned up the cassette.
This morning it was raining.

The prolink should hold okay though.
Mid 30sF. Bit of a tailwind. I do like riding in the rain. With the tailwind I had no wind noise so it was just the gentle whir of the tires and the sound of raindrops hitting my jacket.
5 miles of empty MUP. Not a single other person. Just the occasional squirrel.