The City of Middleton's long standing alternate side parking ordinance is in effect from November 15 to March 15, from 1:00AM to 7:00AM daily. If you need to park on the street during that time, you have to park on the even numbered side of the street on even numbered calendar days and likewise, park on the odd numbered side of the street on odd numbered days. The purpose of the ordinance is to facilitate snow removal and street maintenance.
If signs prohibit parking on one side of the street, alternate side parking does not apply. If the addresses on your street are all even or all odd numbered, the alternate side parking regulation still applies. In effect, there is no on-street parking every other night in this case.
https://www.cityofmiddleton.us/587/Alternate-Side-Parking
https://www.cityofmiddleton.us/638/Alternate-Side-Parking-Calendar