For the 2016 General Elections, you can vote prior to election day in Maryland.
Registered voters have always been able to vote during early voting, but now individuals who are eligible but not yet registered can register and vote.
To register and vote during early voting, go to an early voting center in the county where you live and bring a document that proves where you live. This document can be your MVA-issued license, ID card, or change of address card, or your paycheck, bank statement, utility bill, or other government document with your name and new address. You will be able to register to vote and vote.
When can I vote early?
General Election - Thursday, October 27, 2016 through Thursday, November 3, 2016 from 8 am until 8 pm.
Here is a complete listing of early voting locations in Maryland
Here is more information about early voting in Maryland