Eupithecia nimbicolor is a moth in the family Geometridae. It is found from eastern Newfoundland and Labrador to western British Columbia and from Alaska to Arizona. The wingspan is 17–23 mm. Adults are grey and yellow or orange-brown suffused. Adults are on wing from mid May to mid July in the north. The larvae feed on the flowers of Achillea and Castilleja species and the foliage of Salix, Rosa, Potentilla fruticosa and Ribes species.