2. Stellarium for your computer; Google Sky Maps or similar for your app-y devices.
1. Since Stellarium can be set for any date/time/location, that's a good resource to discover what should be visible (assuming good skies). Apart from that, check out
This Week's Sky at Sky & Telescope:
https://skyandtelescope.org/observing/sky-at-a-glance/
or
https://stardate.org/
Autumn Sky Tour:
http://www.rocketmime.com/astronomy/Fall/fall.html
Clear Sky Clock:
https://www.cleardarksky.com/csk/prov/Maine_charts.html
Planet-wise, you should be able to see Saturn and Jupiter low early, but you won't see details without a telescope. Mars later, Pleiades toward midnight (great in binoculars!), and if you get up in the middle of the night, you might see the great nebula in Orion (binoculars minimum).
3. Yes, binoculars, esp. if you aren't otherwise hauling a telescope. There's a table on that Autumn Sky Tour page toward the bottom that lists several highlights, many of which require at least binoculars (Double Double, Coathanger, Albireo, Double Clutser, M15 Globular Cluster), some are naked-eye visible but having binoculars can't hurt (Mizar & Alcor, Andromeda, d Cephei, Algol the Demon Star), while only the Ring Nebula requires a telescope). Even a small 8x21 pair will help, and that's not a huge burden when backpacking 3 mi. Note that dedicated stargazing binoculars tend to have much larger objective lenses (50 ish and up).
Have fun - I envy your dark skies! But note, if you're in the woods and the leaves are on the trees, you may only see skies straight up, at most. You'll have to have a large clearing or an overlook (dangerous at night) to see much of the sky. It's one of the conundrums of backpacking and stargazing out east.