Since I live in Kansas, which is known for it's high wind speeds, I asked the same question a while back.

The answer that I got was flying wings, e.g. Unicorn.

My personal best is 30mph winds with 35mph gusts. It handled fine. Additionally they are probably the most crash-worthy planes available.

I fly in 20+mph winds all the time. If I didn't I wouldn't fly!

Brad