Yeah, we're expecting Bear's Weather.
If the dawg is out for climate reasons, these have indoor seating:
Murphy's dog's (not to be confuse with Murphy's Bleachers), 3 blocks west of the Belmont Red/Brown line review:
http://gochicago.about.com/od/chicag...ys_redhots.htm
or Gold Coast Dogs: at Wabash/Randolph, Clark/Fullerton, ORD T3 or Union Station (the original location was real close to your hotel, but is now gone)
http://www.goldcoastdogs.net/
and RIP Demon Dogs