The simple answer is: sort of. While I haven't found any companies that make boots in special wide widths, there are boots that fit women with wide feet, many of which can be custom molded.
Nordic ski boots also come in many flavors: recreational touring, recreational skating, competitive classic skiing, and competitive skating. Your best bet is to go to a specialty store so they can match your feet to a specific boot, but here are a few ideas to get you started:
In the recreational touring category, try Fischer's Comfort Cruiser (fischerskis.com). Designed for nature-loving newcomers to cross-country skiing, this book has a soft sole flex, more insulation, and a lot of flexibility, which means that wide feet work well in it.
Rossignol's X9FW ($229, rossignol.com) is an entry-level race-quality skate boot, built with an internal lacing system and a thermo-adjustable fit, so you can customize to your size.
In the serious skate or classical race category, try Salomon's Carbon Skate ($450, salomonsports.com) or Carbon Classic ($400). These two are World Cup worthy, and custom moldable to almost any foot size. But keep in mind, youll also need Salomon's special Pilot binding system.
Since you live in Wisconsin, I'd recommend taking a drive to Hayward, home of the American Birkebeiner ski race and New Moon Ski & Bike shop (newmoonski.com). The experts there will take one look at your foot and have you in the perfect boot in no time.