http://www.nraila.org/gun-laws/state-laws/wisconsin.aspx
This is off the NRA ILA website and I'd assume a very reliable source.
Reciprocity
These states recognize Wisconsin permits: Alaska, Arizona, Arkansas, Colorado, Georgia, Idaho, Indiana, Iowa, Kentucky, Louisiana, Michigan, Missouri, Montana, North Carolina, North Dakota, Oklahoma, Pennsylvania, South Dakota, Tennessee, Utah, Vermont
Wisconsin recognizes permits from: Arizona, Arkansas, California, Colorado, Connecticut, Georgia, Hawaii, Idaho, Indiana, Iowa, Kansas, Kentucky, Louisiana, Maryland, Michigan, Minnesota, Montana, Nebraska, New Mexico, New York, North Carolina, North Dakota, Pennsylvania, Tennessee, Texas, Utah, Virginia (non-resident permits), Washington, West Virginia (only if permit issued after 6/8/12), Wyoming
This is what I refrence before going out of state.
Better to check than screw up and land your ass in jail.
Good luck.