The Shipyard Old Port Half Marathon is Saturday morning in Portland, Maine. The weather looks pretty darn good overall, with a gusty wind being the only possible negative impact for the runners. As with many half marathon courses, there are certain miles that are exposed to the wind and others where the runners are pretty well protected by trees and buildings. Fred Campagna has the course preview to let you know where the wind will have its biggest impact and also where to expect the hills on the Old Port half marathon course.

Check out the full forecast here