Yes, comets, plural. There are two that will be visible with the assistance of binoculars or a telescope tonight, and for the next few nights.
Comet Lemmon will be the easiest to spot tonight. Simply a pair of binoculars should be all you need. Find the Big Dipper and loow a little west from there and you should be able to spot it!
This is the dimmest of the two and might require the help of a telescope. Look to the south after twilight for the best chance.
Want the best chance to spot either or both of these tonight? Getting out of the city is always a good idea, but giving your eyes plenty of time to adjust will help.
You're going to have NO SHOT if you're stuck in the clouds tonight. Luckily, many of us have a pretty clear night in store, with the lone exception around the Great Lakes. If you're unfortunate enough to get the thin band of clouds overhead tonight, give it an hour or two - those hopefully won't linger from West Virginia to Louisiana.