Clothing Question - Rain/Wind

I do a lot of fall/winter backpacking and I have been working on transitioning over my gear to ultralight. I like the idea of the mid layer with a wind/rain layer. Do people carry both wind and rain gear? Is this trip dependent? Obviously I would prefer to not carry both but are there breathable rain gear options that are ultralight or are there wind gear options that will keep me dry enough when raining? I currently use an OR Helium jacket and basic REI rain pants.