Juntwait will be just the third regular host of the broadcasts, which began in 1931. Milton Cross served as announcer from their inception until his sudden death in 1975; Peter Allen then took over the program on short notice and remained its host until he retired in May of this year.
The only other person to host the broadcasts is Lloyd Moss, who substituted on two occasions in 1973.
"We are delighted that Margaret Juntwait will be the new voice of the Met on our radio broadcasts series," said Metropolitan Opera general manager Joseph Volpe. "Her knowledge and enthusiasm are the perfect fit for the considerable demands of live radio, and ensure the ongoing quality of this unparalleled series."
Juntwait studied voice at the Manhattan School of Music, and has been at WNYC since 1991.
ChevronTexaco ended its 63-year sponsorship of the broadcasts at the end of the 2003-04 season. The Annenberg Foundation and the Vincent A. Stabile Foundation have donated $3.5 million each to support the upcoming season of broadcasts, but the Met continues to seek donors to finance the series.