All rain jackets wear hot, so not a great piece of clothes to begin with. If you're jeans and sweater kinda guy, I'd recommend
Outdoor Research rain jacket. It's not too-too expensive and is very comfortable to wear. I've had one with me in Europe and was reasonably happy with it. If you plan to wear it over a sports jacket, you'd need something a bit longer than a normal rain jacket. Consider a simple rain shell from
Columbia or
Lululemon. These are more universal and can be useful in most fall weather situations.