Abstract: Externally mounted downspouts normally discharge water adjacent to a building's foundation. The drain spout of the present invention fits onto such downspouts to redirect the water away from the building's foundation, and is constructed of a durable and resilient rubber to avoid permanent deformation and blockage of its internal channel, and thus avoid moisture or water backing up into the foundation of the building. The drain spout is preferrably square or rectangular in shape, is four to five feet (1.2 to 1.5 meters) long, and is constructed of a pliable rubber forming at least a ⅛ inch (3.2 mm) thick wall having smooth inner walls and external ribs. Such construction avoids breaking, squashing, flattening, bending, or other damage of the drain spout, and provides resistance to impact, abrasion and tearing.