Thanks to Dagny's recommendation on this forum, I’m now a fan of the Marmot PreCip jacket and pants. I’ve had the opportunity to test them out several times this fall and today in a snow storm. I got them large enough for a good mid layer. They fold up to next to nothing in the pack.

I have an older Marmot gore tex jacket that is great in cold and wet conditions and it's tough as nails.