You're going to have to wait a couple more months before you gorge yourself with brats and cheese curds.
Milwaukee's Summerfest has moved their dates for 2021. Usually, Summerfest is at the end of June spilling into early July. With the uncertainty of being able to host events in June, Summerfest dates have moved to September 2-4, 9-11 and 16-18.
Only a handful of artists have been announced for 2021 but those include Guns N' Roses and Blink-182. No dates for those shows yet.
You can get more info on Sumemrfest HERE.
-Walt