Though it is raining lightly at the moment, the weather is forecasted to clear well before parade time (4:30 PM). As a reminder, the parade is typically only postponed due to extreme weather, such as high winds or ice that may pose a threat to participants or viewers.
For folks looking for parking, the Bangor Parking Garage and Abbot Parking Lot are both excellent options. More information here: The parade starts at 4:30 PM tonight (Saturday, Dec 2). 
And finally here is the official parade route.
The parade will start at the intersection of Exchange Street and State Street. From there, the route will follow Harlow Street to Central Street. It will turn left onto Central Street and proceed down Central to the intersection at Main/State/Hammond. It then goes straight onto Main Street and proceeds up Main Street through the intersection of Main/Union and continue up Main Street towards Cedar Street. The official end of the parade is in front of Davenport Park.
Excited to see you all there!