Instead of a light duty winter jacket I dress in layers for my commute. Typically I wear a long-sleeve base layer shirt (I got a couple on the cheap from CostCo last year), a long sleeve jersey and a lightweight wind breaker. Temps right now are in the 40s in the morning and low 70s for the evening ride home. When we get a little further into Fall/Winter and the temps drop into the 30s in the morning I add a fleece vest and wear a wool cap under my helmet.
I also have a waterproof Craft jacket, but that doesn't see much action. I bought it last year thinking it would be good for rainy days but I found I prefer the layers over the jacket.
My commute is 22 to 25 miles each way.