Fresh Air @ARTFarm from 6 p.m. to midnight Friday and 2 p.m. to midnight Saturday at 10 Poplar St., in Somerville’s Inner Belt area. Admission is a $10 to $15 suggested donation, and free for those 16 and younger.

This outdoor rock festival puts more than three dozen bands – including Yune Neptune, Joss, Anjimile (above), Dent, Sidney Gish, Mint Green, Solei, Midisexual, Lea Jaffe and The Furniture – onstage over two days, with proceeds going to the Boston Alliance of Gay, Lesbian, Bisexual & Transgender Youth and the Girls Rock Campaign Boston. (Set times are here.) The Taco Party food truck will be on hand both days, and Feminist Fiber Art for Saturday, at this show hosted by Boston Hassle. Information is here.

In No Time: A Garden Party from 7:45 to 9:30 p.m. Friday in the Lipchitz Courtyard of the Hayden Library Building at 160 Memorial Drive at the Massachusetts Institute of Technology. Free, but register here.

Why put a graduate student end-of-year event on the weekend hot list? Because these are students in MIT’s Art, Culture and Technology program, and you know these people have put together some amazing stuff before getting on with changing the world post-grad-graduation. Also, these undoubtedly insanely clever installations, performances and screenings take place outdoors. Information is here.

Fresh Pond Day from 11 a.m. to 3 p.m. Saturday around the Water Treatment Facility, 250 Fresh Pond Parkway, Fresh Pond. Free.

The annual Fresh Pond Day celebrates Fresh Pond Reservation – the urban wild that protects Cambridge’s drinking water reservoir – with live music, face painting, truck climb-aboards, nature storytelling, separate parades for “wildlife” (kids can make signs and masks onsite) and bicycle riders (kids can add flair and decorate onsite), a visit with live animals, nature drawing and a “Fresh Pond Beyond This Moment” tour. Rain or extreme weather cancels this event, the Cambridge Water Department warns. A schedule and information is here.

An Afternoon with Granta Magazine: Best of Young American Novelists at 2:30 p.m. Saturday at Cambridge Main Library, 449 Broadway, Mid-Cambridge. Free.

Look back a decade or two and this Harvard Book Store event introduced us to such luminaries as Daniel Alarcón, Edwidge Danticat, Jeffrey Eugenides, Jonathan Safran Foer, Jonathan Franzen, Nicole Krauss, Lorrie Moore, Yiyun Li, Karen Russell and Gary Shteyngart. Out of the 20 voices featured in this decade’s Granta’s “Best of Young American Novelists,” four will be on hand: Mark Doten (“The Infernal”), the University of Massachusetts at Amherst’s Rachel B. Glaser (“Paulina & Fran”), Greg Jackson (the story collection “Prodigals”) and Sana Krasikov (above, of “The Patriots” and “One More Year”). Information is here.

New dance in Central Square. See the “A Hunger Artist” performance and album release from 7 to 9 p.m. Saturday at The Dance Complex, 536 Massachusetts Ave., ($20, or $21.69 in advance with the online service fee, $25 at the door) or “California Guignol” at 8 p.m. Saturday and Sunday at the Studio at 550, 550 Massachusetts Ave. ($15).

“A Hunger Artist” (above) is an experimental dance theater performance with Vaudeville slapstick, jazz and contemporary dance that is inspired by Franz Kafka’s work of the same name, following the journey of a fasting artist who lives for yet resents his audience. Composer and director Simona Minns sends dancers Madeline Miller, Séarlait Rose Carr and Mary Teuscher on a roller coaster of grotesque images and emotion, with live music that is also being released on CD. There will be a Q&A session at the album release party, as well as wine and a photo session. Information is here.

“California Guignol” moves Oscar Wilde’s “Salome” to the Hollywood of the 1970s (where a director’s attempt to film at a secluded mansion runs afoul of a Manson-esque guru and the band of hippies squatting on his terrace) and Mary Shelley’s “Frankenstein” to present-day Silicon Valley (where a biotech billionaire’s experiments in necromancy wreak havoc). Cambridge experiences the gruesome style of Grand Guignol in this wrap-up to the Strange News troupe’s first season, with stars Natanjah Driscoll, Doug Dulaney, Evan Eckstrom, Chelsea Evered, Kate Jurdi and Dharmik Patel in adaptations directed by Davis Alianiello. Information is here.