The Jewish Museum participates in the 39th annual “Museum Mile Festival,” 6-9 p.m. The opening ceremony at 5:45 is at El Museo del Barrio (Fifth Avenue at 104th Street). The Jewish Museum’s “Florine Stettheimer: Painting Poetry,” is the first major U.S. exhibition in more than 20 years focused on the influential American painter. Rain or shine. Free museum admissions and outdoor art activities for children. (212) 606-2296.