Immaculate High School, Abbott Tech and the Wooster School are also closed.
Western Connecticut State University will open at noon.
Also, a Level 1 snow emergency has been declared, which means Danbury residents must move their cars off streets to allow for plowing, Mayor Mark Boughton said via Twitter.
Check back with The Danbury Daily Voice for updates on closings and weather.
Click here to follow Daily Voice Danbury and receive free news updates.