You upper latitude folks like Illinois Kenjj50 probably have good experience in knowing how to keep your Swing fresh. In the fickle winters of PA, I look for any window to get the bike out and have found at least ONE day per winter month to get the Swing safely on the road for a spell.
Sometimes salt will limit your willingness to endanger the bike, but watching the weather helps to plan even a week ahead. If that happens, I slip out.
During winter months, I also plan that I may not have a riding window for a month, so keeping the tank as FULL as possible (keeps nasty condensation at a minimum), dropping in some Stabil, Marvelous Mystery Oil, Seafoam, or other protective petroleum-based product in the tank during winter fill-ups helps. I'm also guessing that some Heet/dry gas could help. Also if the bike sits for about a month, keep the battery tended with a tender, trickle charger, etc. Then you will be ready to slip out through a weather window any time, with the readiness of a fighter pilot.
I can only remember about two complete winters when I actually took the battery out of my Honda Nighthawk 450 and brought it into the warm basement for the winter. Since then my batteries have been outside with periodic tending, ,and I have found that if tended, my batteries were ready to work.
Caution: even a new battery untended through 6 months of winter can drain to uselessness. Be sure that your outside battery is tended if left out too long.
I kind of look forward to the challenge of the upcoming winter to see what I can (safely) get away with in the riding experience.