Museum announces July 4 weekend hours The North Dakota Museum of Art will be closed Tuesday, July 4. The Museum Cafe will be closed Monday and Tuesday, July 3 and 4. Museum hours are 9 a.m. to 5 p.m. weekdays and 11 a.m. to 5 p.m. weekends. -- Brian Lofthus, Assistant to the Director, North Dakota Museum of Art, blofthus@ndmoa.com, 701 777-4195