Best bets: Morton Arboretum’s Chocolate Weekend, Renee Fleming at Lyric and Groundhog Day

Chocolate fest

Chocolate lovers converge on the Morton Arboretum, 4100 Illinois Route 53, Lisle, to celebrate the cacao tree during Chocolate Weekend. The mini-fest features presentations on the making of chocolate from chocolatiers and cacao experts. Free with arboretum admission. Advance admission prices start at $14.95 for adults; $8.95 for seniors and kids. mortonarb.org. 9 a.m. to 4 p.m. Saturday and Sunday, Jan. 31 and Feb. 1

Live, an SNL vet

Actor/comedian and “Saturday Night Live” veteran Kevin Nealon (“Man With a Plan,” “Weeds”) headlines The Den Theatre, 1331 N. Milwaukee Ave., Chicago. Tickets start at $30 plus a two-item minimum. (773) 697-3830 or thedentheatre.com. 7:15 and 9:30 p.m. Friday and Saturday, Jan. 30-31

Two divas, one city

• Three-time Tony Award-winner Patti LuPone brings her “Matters of the Heart” concert to The Auditorium, 50 E. Ida B. Wells Drive, Chicago. Inspired by LuPone’s 1999 recording of the same name, the show includes more than two dozen songs, including Broadway favorites and tunes by contemporary songwriters. $59.81-$132.81. (312) 341-2300 or auditoriumtheatre.org/, 7:30 p.m. Saturday, Jan. 31

· Renee Fleming returns to Chicago with pianist Inon Barnatan for her first solo recital at the Lyric Opera of Chicago, a re-creation of her 2023 Grammy Award-winning album “Voice of Nature: The Anthropocene.” Created in collaboration with the National Geographic Society, the concert examining humans’ experience in nature features classical works — including George Frideric Handel’s “Cara Salve” from “Atalanta”; Giacomo Puccini’s “O mio babbino caro” from “Gianni Schicchi”; Sergei Rachmaninoff’s “Moments Musicaux No. 4” — as well as contemporary songs including Björk’s “All is Full of Love”; Jackson Browne’s “Before the Deluge” and Frederick Loewe and Alan Jay Lerner’s “I Could Have Danced All Night.” The performance takes place at the Lyric Opera House, 20 N. Wacker Drive, Chicago. $89-$264. (312) 827-5600. lyricopera.org. 7 p.m. Thursday, Feb. 5

Mind-reading magic

Illusionist Michael Grandinetti (NBC’s “The World’s Greatest Magic,” CW’s “Masters of Illusion,” Pop’s “Don’t Blink”) brings his show “The Magic of Michael Grandinetti: Master Illusionist — An Interactive Experience” to the Athenaeum Center for Thought and Culture, 2936 N. Southport Ave., Chicago. Grandinetti’s performance includes levitation, teleportation and mind reading as well as audience participation. $29, $34. (312) 820-6250 or athenaeumcenter.org. 7 p.m. Saturday, Jan. 31

South Asian exhibition

The South Asia Institute, 1925 S. Michigan Ave., Chicago, debuts the new exhibition “Transforming Legacies: South Asian Story Painting” consisting of 36 story paintings inspired by 14 centuries of South Asian narratives including adaptations of stories such as the Sanskrit epic “The Ramayana” and “Heer Ranja,” a famous Punjabi love story. Hours are 11 a.m. to 6 p.m. Thursday through Saturday. Admission is by donation. (312) 929-3911 or saichicago.org. Saturday, Jan. 31, through Dec. 12

Lyric stages Mozart rom-com

Lyric Opera of Chicago’s season continues with “Così fan tutte,” Wolfgang Amadeus Mozart’s romantic comedy about two soldiers who bet that their fiancees will remain faithful in their absence, then return in disguise to try to woo them. Music director Enrique Mazzola conducts Jacquelyn Stucker, Cecilia Molinari and Anthony León all making their Lyric debuts, as well as Ryan Opera Center alumnus Ian Rucker, Ana María Martínez and Rod Gilfry. Roy Rallo directs the production, which is set at a 1930s seaside village and originally conceived by the late Michael Cavanagh. Performances take place at 20 N. Wacker Drive, Chicago. Tickets start at $47. (312) 827-5600 or lyricopera.org. Sunday, Feb. 1, through Feb. 15

DRUMLine Live

DRUMLine Live, a stage show celebrating the marching band tradition as performed at Historically Black Colleges and Universities, comes to The Auditorium, 50 E. Ida B. Wells Drive, Chicago. The synchronized musical showcase incorporates original composition and interpretations of Top 40 hits enhanced by elaborate choreography. Tickets start at $73. (312) 341-2300 or auditoriumtheatre.org. 3 p.m. Sunday, Feb. 1

Groundhog Day celebrations

• The city of Woodstock commemorates its starring role in the 1993 film “Groundhog Day” with a weekend of family-friendly activities including a conversation with actor Stephen Tobolowsky (Ned Ryerson), film screenings, a dinner dance, a 5K race, a pub crawl and tours of filming sites. The festival concludes Monday morning, Feb. 2, with the official prognostication by Woodstock Willie in Woodstock Square bordered by North Johnson, Cass, South Benton and East Van Buren streets. Events range from free to $50. Woodstockgroundhog.org. Friday, Jan. 30, through Monday, Feb. 2

• Harry Caray’s on Navy Pier, 700 E. Grand Ave., Chicago, hosts a Groundhog Day Celebration that honors the career of Chicago-born actor/writer/director Harold Ramis (“Groundhog Day”). This year’s event also celebrates “Animal House” and includes appearances by actor Tim “Otter” Matheson, who serves as emcee. Joining him are castmates James “Hoover” Widdoes, Peter “Boon” Riegert, Mark “Neidermeyer” Metcalf, James “Greg Marmalard” Daughton and Martha “Babs” Smith. Free. Discounted parking with validation. (312) 527-9700 or harrycarays.com. 3 p.m. Monday, Feb. 2