3 – Oxford Wisconsin – Oxford Hawking Days Car Show
3 – Pardeeville Wisconsin – 2nd Annual Car & Truck Show
3 – 4 Fon du Lac – Wisconsin Street Rod Association Corn Roast & Car
4 – Racine – North Beach Oasis Annual Art Festival and Car Show
4- Cambridge Wisconsin – Lake Ripley Car & Bike Show
5 – Merrill Wisconsin – 27th Annual Evening Lions Classic Car Show
5 – Oshkosh Wisconsin – Labor Day Picnic & Showing of Antique & Classic
Looks like a good selection of shows, more info on car show page.