A cover for a baby stroller is disclosed. The cover includes thermally insulated panels for retaining warmth for use in cold weather. The front panel includes an umbrella-shaped window with zipper access to allow the baby to be removed from or replaced into the baby stroller. The use of a rear zipper and top and bottom pull strings allows the cover to be attached to a range of baby strollers. By varying the manufactured dimensions of the panels of the cover, covers can be supplied for a very broad range of baby strollers.