Enjoy the season this Saturday starting at 9 a.m. at the Congregational Church on Princeton Street.
The event goes on until 2 p.m.
Head on over to Sprague Avenue from 10 to 2 on Saturday and Sunday for home decorations, handbags, shoes and more.
Matthews Memorial Church on Gorham Street is holding its second annual Halloween party from 3 to 5 p.m. on Saturday.
The Chelmsford High School National Honor Society is raising money for Autism Speaks on Sunday from 11 to 3 p.m. at the Paul Center on Concord Road.
Tickets are $5 (an additional $3 for the haunted trail), with a $20 cap per family.
More information on the Chelmsford HS National Honor Society is available on their website.
They’ve been invited to the Orange Bowl, but they need your help.
Head up to Roller Kingdom in Tyngsboro on Sunday from 6 to 9 p.m. as the team tries to create the World’s Largest Harlem Shake at a Halloween Costume Contest.
Tickets are $10.
More information is available on the team’s Facebook page.