Big Al's fearless prediction of the MN Walleye opener is: Lockjaw.
38 for a low locally for Sat AM, cooling off on Thursday, so water temps dropping which = for the most part lock jaw for them, finicky in very likelihood. And don't forget your long johns and winter bibs and jackets and gloves. I bet there is a chance of a few flurries up north too.
I remember about 25 years ago when in central Mn fishing on the Opener and the high was 40 with snow showers. A tough bite and damned cold with the 15-30 MPH winds.
Too bad the opener was not 2 days ago, it'd would have been a good bite with the warm temps and everyone would have enjoyed them selves.
Good luck to everyone heading out later this week.