Sounds great Wendy! I have been thinking that I should pick up an FJ rain/wind shirt. Specifically for the days that you have referred to...a little bit of "nip" or chill in in the air, but not wanting to wear too much "bulk" that can impede the swing.
Another option for me has been the FJ Mid Layer ...the long sleeve, half zips that come in brushed jersey, etc. I find they have nice warmth and with a shirt on underneath, it is still trim and easy to swing a club.
Also, I had a good look at some more of the FJ collection at one of our Local Golf Towns and the Northview Pro Shop C...I think I'll pick up an item or two in the next few weeks!