“Here's another possibility - I've never tried these but have looked at them in the store, they seem pretty light and should be windproof

http://www.rei.com/product/766531 ”

I’ll second those. I’ve used them for 2.5 years for backpacking and biking. They are light, windproof, and water resistant. I don’t sweat in them. For backpacking, I use them for 45F to 60F windy or wet weather.

-Barry