Monday is Columbus Day, a federal holiday. The following public services will be affected:
Schools: Chicago Public Schools will be open. Most parochial and suburban schools will be closed.
Government offices: Federal, county and city offices will be closed.
Postal service: There is no regular mail delivery. Express Mail will be delivered.
(Correction: An earlier version said Chicago schools would be open to make up a strike day, but the schedule was made prior to the strike)Copyright © 2015, RedEye