Chicago November 17, 2023 6:54 pm Watch: Chicago lights official 2023 Christmas tree at Millennium Park Chicago ushered in the holiday season on Friday with its official Christmas tree lighting at Millennium Park. Local 0:34 Chicago's public pools will open for the season on Monday – with a major change 2:18 Tips for staying safe in dangerous heat in Chicago 2:13 Chicago families flock to the beach on Father's Day amid hot weather 2:07 City of Chicago provides reminders to stay safe in the intense heat 2:20 Sunday night forecast