Legal marijuana is coming to Illinois as Gov. Pritzker signs bill he calls an ‘important and overdue change to our state’

Gov. J.B. Pritzker on Tuesday signed into law a bill that will legalize marijuana in Illinois next year, marking a momentous shift in how the state treats drug use.

The bill will allow the licensed growth, sales, possession and consumption of cannabis for adults 21 and older.

The signing ceremony, attended by several lawmakers, officeholders and marijuana supporters, took place at the Sankofa Cultural Arts & Business Center in Chicago’s Austin neighborhood.

Pritzker called the legislation a “sea change” for Illinois, saying that the war on drugs has destroyed families...