Steelers team buses are ready to head to the stadium for the game in snow-covered Orchard Park, New York.
All week, the Steelers said they wouldn't be bothered by the weather.
The Steelers are certainly playing their best football at the right time, but the Bills are also very hot, having won five straight games and six of their last seven.
Both teams will have to deal with the elements. Temperatures are expected to be in the teens at game time, along with high winds.
KDKA-TV's Rich Walsh believes the worse the conditions are, the better the Steelers' chances are. The Steelers have been the best rushing team in the NFL the last three games, and the Steelers defense has Minkah Fitzpatrick back.
Patrick Peterson could be the difference-maker for Pittsburgh's defense later Monday. Josh Allen has thrown four interceptions in the last three games.
“We have to win this game together,” Peterson said. “We have to fight until the end, because like I said, this is a very high-powered, very high-powered offense. They've got really good tacklers, and they're trying to make it difficult for the quarterback to try to find receivers down low and in the middle part of the field,” he said. “So we all know that this is a very difficult challenge for us… a hostile environment, you have to fight the elements.”
The Steelers were scheduled to leave their downtown hotel at 12:30 p.m. to make their way to the stadium, followed by a police escort and snow plows.