Here's what's on in Berkeley from Friday, Oct. 30, through Monday, Nov. 2, from merchant trick-or-treating to a dog costume contest and Día de Muertos.

Friday, Oct. 30

  • Halloween on Solano: most Solano Avenue businesses hand out candy from 3 to 5 p.m. A costume contest for kids, families and groups follows at 5 p.m. at Solano-Peralta Park, with prizes up to $100. Berkeleyside reports the contest will be canceled if it rains. Free.
  • Halloween Hootenanny: free pumpkins, kids' crafts, fortune telling, a costume contest, face painting and live Rocky Horror Picture Show performances, 3 to 7 p.m. at Downtown Berkeley BART Plaza. Free.
  • Horror Film Fest-Evil: Berkeley Community Media's 19th annual indie horror screening, 7 p.m. at 1931 Center St., with a prize for costumes. $10.
  • PUNK or Treat at Gilman Brewing; see our preview.

Saturday, Oct. 31

  • Library family Halloween: the Story Time Band and Fratello Marionettes, 10 a.m. at The Freight. Free.
  • Halloween Howl Dog Parade and Costume Contest: 10 a.m. to noon at 1720 Eighth St. It's $5 per dog. You must register in advance and bring proof of a current rabies vaccination.
  • "Wallace & Gromit: The Curse of the Were-Rabbit": 10:30 a.m. at Rialto Cinema Elmwood. It's free, but you need a ticket from the box office, which starts handing them out Oct. 30.
  • Fourth Street Halloween Festival and Trick or Treat: 3 to 5 p.m. on Fourth Street between University Avenue and Virginia Street. About 80 shops hand out candy, and there are magic and bubble shows, face painting, a hair-spray booth, crafts and live music. Free.
  • Klaxon Mutant All-Stars: trumpeter Henry Hung's Halloween concert of reworked 1980s pop, 8 p.m. at The Jazzschool. Costumes are encouraged. $25.

Sunday, Nov. 1, and Monday, Nov. 2

  • La Peña Día de Muertos: La Peña Cultural Center's annual community celebration with crafts, a community ofrenda and a son jarocho fandango, 5 to 9 p.m. Sunday. A $15 donation is encouraged.
  • Día de los Muertos on Fourth Street: a celebration hosted by Paraiso Plant Studio, 5 to 8 p.m. Monday, Nov. 2, according to the Fourth Street events calendar.

Rain could affect outdoor events, so check with organizers before you go. For Alameda, Hayward and Walnut Creek, see our East Bay Halloween roundup.