We had a doozy of a windstorm roll through the area last year that, sadly, damaged the willow. We had an arborist out to take a look, and he recommended some trimming to reduce the weight on some main branches.
Although it pained us, we trimmed it down to avoid risk for anyone standing under the tree. The good thing is that we were able to trim in a way that isn't very noticeable. Also, willows bounce back quickly, and we expect with the new growth this spring that your guests won't even be able to tell.