Republican Sen. Ron Johnson and his Democratic challenger Russ Feingold are scheduled to debate Oct. 14.
The debate was announced Monday by the Wisconsin Broadcasters Association Foundation.
The hour-long debate on a Friday night just over three weeks before the Nov. 8 general election will be somewhere in the Green Bay-Appleton market, but the exact location was not announced.
This is the first announced debate of the campaign between Johnson and Feingold this cycle. It marks the first time the two have debated since their first contest in 2010. Johnson won that year, ending Feingold's bid for a fourth term.
More details were to be released as they are finalized.