The Premier League team, who are on a two-game post-season tour of the United States and Canada, are scheduled to play Houston on Friday.
Several people have died and dozens have been injured following record rainfall over the weekend.
On Monday, hundreds of basketball fans were trapped inside an arena after an NBA basketball game.
Supporters were advised to stay in their seats overnight following Houston Rockets' win against Golden State Warriors in the NBA Western Conference Finals.
Many spent almost 11 hours at the Toyota Center, until the early hours of Tuesday morning.
Manchester City are currently in Canada, ahead of their match against Toronto FC on Thursday.Wiggins, 36, had hinted the race in the city of his birth could be his last, but afterwards said he was "not sure yet" what his plans are.
"I don't know, I've still got really good legs," he said.
"This might not be my last race. This for sure is my last ever race with Mark Cavendish, though."
The 2012 Tour de France winner added that he "just wants to enjoy this moment".
Wiggins' admission follows his comments after last month's London Six Day, when he hinted he could be tempted to race there again next year.
Wiggins and Cavendish claimed overall victory in Ghent after winning the final madison event.
The pair also contested the Ghent Six in 2007 and won madison gold together at the World Track Championships in London