Weiss attended Columbia University in New York City, graduating in 2007. She founded the Columbia Coalition for Sudan in response to the War in Darfur. Weiss was the founding editor from 2005 to 2007 of "The Current", a magazine at Columbia for politics, culture, and Jewish affairs. Following graduation, Weiss was a "Wall Street Journal" Bartley Fellow in 2007, and a Dorot Fellow from 2007 to 2008 in Jerusalem.