There should be a record at your County Courthouse of the Sheriff's Sale. You should have also been recieving notices through the mail of pending dates of the foreclosure and the auction.
The home WILL be sold at auction ~ whether it is sold to a private party or back to the bank that holds your mortgage. Either way they will need you to vacate the property.
There is a redemption period after the Auction, (in Milwaukee County it is 2 weeks ~ it may be the same state wide) during this time you have your last chance to come up with the money and a plan with your lender to prevent the eviction. You must contact your mortgage company to make arrangements.
You will be notified by the Sheriff and likely be evicted by the Sheriff on the last day of the redemption period. Plan ahead, don't wait until the last day.