FLOWERY BRANCH, Ga. − Yesterday was an ugly, rainy day at Atlanta’s practice facility − a perfect setting for the Falcons to be reminded they can make sure they don’t play another game outdoors this season.

That’s added motivation to avoid a letdown in tomorrow night’s game at Detroit’s Ford Field.

The Falcons ‏(12-2‏) can secure home-field advantage through the NFC playoffs by beating the Lions. They play their final regular-season game against Tampa Bay next week in the Georgia Dome. The Super Bowl in New Orleans also will be played in a dome.

Linebacker Sean Weatherspoon had a big smile taking about how a win at Detroit would mean there would be no chance of a January game in Seattle’s rain or Green Bay’s snow.

“That’s awesome,” Weatherspoon said. “We have a lot to play for. It should be fun.”

The Falcons have painful memories of their last road game, a Dec. 9 loss at Carolina that followed a home win over the Saints.

Tight end Tony Gonzalez said players must respond better to last week’s impressive 34-0 win over the Giants.

“Our focus going into that game was the best it’s been all year,” Gonzalez said. “We have to have that type of effort week in and week out for the rest of the season.”