Tim Warfield Jr., a native of York, Pennsylvania, began studying the alto saxophone at age nine. He switched to tenor saxophone in the ninth grade, during his first year at William Penn Sr. High School, where he participated in various musical ensembles winning many jazz soloist awards, including second out of forty competitors at the Montreal Festival of Music in Canada.​

After high school, Warfield attended Howard University in Washington, D.C. for two years before leaving to lead and co-lead groups in the Central Pennsylvania and Baltimore/Washington areas.

In 1990, he was chosen to be a member of trumpeter and CBS/Sony recording artist Marlon Jordan's Quintet, of which he remained a member for three years.

In 1991, he was selected to record "Tough Young Tenors" on the Island/Antilles label, which was listed as one of the top ten recordings of the year by the New York Times, ultimately rising to number five, on the Billboard top 100 Jazz charts. He also joined Jazz Futures, a world touring group assembled by George Wein to showcase some of the world’s brightest young stars in jazz. Also in 1991, Warfield placed third at the Thelonious Monk International Jazz Saxophone Competition held at the Smithsonian Institution in Washington, D.C.

Warfield has made several television appearances including the Today Show, Bill Cosby’s You Bet Your Life (where he was a member of the house band until 1992), and Ted Turner's 1998 Trumpet Awards. Additionally, he has made numerous stage appearances with such names as Donald Byrd, Michelle Rosewoman, Marcus Miller, Marlon Jordan, James Williams, Christian McBride, Winard Harper, Dizzy Gillespie, Johnny Coles, Leslie Burrs, Isaac Hayes, Peter Nero, Shirley Scott, Jimmy Smith, Billy Paul, Kenny Barron, Nicholas Payton, Charles Fambrough, Eric Reed, Carl Allen, Terell Stafford, Stefon Harris, Orrin Evans, The Newport Millennium All Stars, "Papa" John Defrancesco, Edgar Bateman, Joey Defrancesco, Claudio Raggazzi, Derrick Gardner and the Jazz Prophets, Trudy Pitts, Dana Hall, and others.