Pulaski was a Polish-born cavalry officer killed in the Revolutionary War.
Chicago Public Schools are closed Monday, in addition to some government offices.
Here's how other services are affected:
-Parking meters must be fed.
-Banks, financial markets are open.
-Post offices are open for regular mail pickups and deliveries.
-Suburban school and Catholic school closings vary.
-No garbage pickup in Chicago.
-Libraries are closed in Chicago but are open in many suburbs.
-Cook County courts are closed. Federal courts are open.
(The Sun-Times Media Wire contributed to this report.)