One of Lowe's homers traveled over 430 feet.
Coach Rob Vaughn was ejected for protesting the Wildcats' go-ahead run in the eighth.
The Terps racked up a season-high 18 hits.
The Terps issued 12 walks.
Justin Vought launched a grand slam as part of a seven-run fifth inning.
Maxwell Costes and Randy Bednar belted 3-run shots to win Saturday's nightcap.
With the help of sloppy Illini defense, the Terps posted four ninth-inning runs.
The Terps' pitchers combined for six walks and three hit batters.