Until you find a good jacket, you may just try wearing a good wicking shirt as your first layer under your hoodie. I will frequently go out with a tech shirt and a sweatshirt for high 30's weather, and it feels pretty good. I wear a jacket mostly to keep wind or rain off me.
July 27 - San Francisco marathon
I generally can't stand running in a jacket. Only unless it's pouring rain and/or so cold that I'm forced to wear it do I wear it. Temps lately have been in the high 30s/low 40s. Generally, I'll wear thin tights with shorts over them, a DriFit base layer, a shirt on top, and gloves. On my long runs, I tend to bundle up a little more as it gets pretty cold by the time I'm done -- I usually start about 2ish on my LRs. Today, for the LR, I wore a DriFit base layer, a long sleeve shirt on top, compression shorts, calf sleeves, and thick tights over them.
5K: 27:06 (11/10/12) | 5M: 44:03 (6/1/13) | 10K: 1:00:48 (7/4/12)
15K: 1:27:53 (3/17/13) | 10M: 1:30:25 (4/13/13) | HM: 1:59:55 (4/28/13)
Next race: Ashland 4th of July 10K