During the remainder of his life Weir painted impressionist landscapes and figurative works, many of which centered on his Connecticut farms at Branchville and Windham. His style varied from traditional, vibrant impressionism to a more subdued and shadowy tonalism. He also became skilled at etching. As a rule, his paintings done after 1900 showed a renewed interest of the academicism prevalent in the work of his younger days, with subjects treated less realistically and a greater emphasis placed on drawing and design.