Festivalen ble arrangert fra 27 Jun til 08 Jul 2018 (11 dag(er)).
Summerfest finner sted i Milwaukee, United States. Her er den fullstendige adressen til festivalen: Henry Maier Festival Park; Milwaukee, Wisconsin, United States
The Weeknd, Imagine Dragons, Luke Combs, Def Leppard, NF, Trippie Redd, Shawn Mendes, The Neighbourhood, Machine Gun Kelly, Pixies, Kane Brown, Greta Van Fleet, Halsey, Journey, Blake Shelton, James Taylor, Kaleo, Brett Young, Marshmello, Social Distortion.
De mest populære sjangrene og undersjangrene i den siste utgaven var:
rock
pop
folk
alternative rock
alternative
indie
indie rock
hard rock
classic rock
indie pop
pop rock
blues rock
rnb
punk rock
metal
power pop
acoustic
emo
post-grunge