The Packers, after their 26-20 victory over the Dolphins on Christmas Day, are suddenly winners of three consecutive games.
Green Bay's win sets up a Sunday rematch with meaning at Lambeau Field as the Vikings (12-3) try to maintain the NFC's No. 2 seed and the Packers (7-8) fight to keep playoff hopes alive.
"They're playing good football right now," Vikings coach Kevin O'Connell said Monday. "Their defense is getting turnovers. They clearly have one of the best quarterbacks in our game, and they're continuing to get comfortable with their personnel."
The Packers looked cooked at 4-8 following a loss to Philadelphia on Nov. 27. But Green Bay is always good when the weather get cold, extending the NFL's longest December winning streak — 15 wins — since the Chargers won 18 straight December games from 2006-2010.
"There's a reason why they're winning and trending upward," O'Connell said. "They're really well coached and obviously they've got experience playing so many meaningful games in the month of December and on. Expecting a heck of an environment there."
To prepare for the cold, O'Connell will hold some practice periods outside at TCO Performance Center in Eagan this week. The Vikings end the regular season with outdoor January games at Green Bay and Chicago.
"As much as some of our guys might fight me on it," he said, "it'll be the best thing for us."
The NFC North champion Vikings are also still in pursuit of a dominating game. Minnesota hasn't beaten an opponent by more than one score since the 23-7 win over Green Bay in the season opener Sept. 11.