Yes!
First, did you know that each NWTC Location is wireless-enabled? Connect your device to the network labeled "NWTCPublic" (no password necessary).
Second, the public libraries in every NWTC county offer free WiFi access:
The Brown County Library also checks out mobile WiFi hotspots: See the Brown County Library Unique Collections.
Additional county WiFi access resources:
Public libraries in surrounding counties also offer free WiFi:
There are also free WiFi locators and directories, including: