So, last night I was awakened by the wind. It had worked our window open from half a crank to nearly three cranks. The breeze was a bit much, so I went ahead and closed the window completely.
This morning when I got up, it was still blowing, and I checked the weather to see what I'd be dealing with on my ride.
As it turns out 20 mph winds aren't so bad when they are predominantly a tailwind. They're even better when you're going uphill.