This weekend will see Onset decorated with both color and light, when Illumination lights up Onset Saturday night, and the Chalk Festival comes to town Sunday.

Illumination will take place Saturday evening, at 9 p.m., and the Chalk Festival will take place from 10 a.m. to 6 p.m. Sunday.

Chalk Festival organizer Milly Burrows said she anticipates a good turnout, and hopes that all 200 available squares will be filled with art. The price for a square and pastel chalk is $5 for artists who wish to participate; kids who want to join in can get a quarter square and playground chalk for $2.

Hannon said last year’s festival was a hit.

“It was very low-key, and very relaxed,” Hannon said. “We had anyone from true artists who did this for a living to kids. They spent four or five hours filling in blocks of drawings.”

Burrows said there would be several art vendors set up around the perimeter of the festival, but no food vendors, as the aim of the festival is to be as community-oriented as possible.

“We had requests from food vendors, asking if they could buy a space, but we refrained from that,” Burrows said. “It’s the kind of event you can leave and come back throughout the day, and we want for visitors to go to restaurants in the area.”

Following the festival, the waters of Onset will gleam with the light of hundreds of flares for the town’s annual Illumination Night at 9 p.m. Hannon, also a history buff, believes the tradition began over 100 years ago, and has continued “on and off” since.

“One night during the year and all through the village people would light lanterns and put them on their porches, and people would stroll through the village and look,” Hannon said.

The town has since switched to flares along the water’s edge, but Hannon said the effect is still “magical.”

“I remember the first time I saw it, I was like, ‘Wow!’ And I remember all the adults around me were doing the same,” Hannon said.