Friday, June 21:

“Midsummer Night on Mass,” 4-10 p.m., Downtown Lawrence. Shopping, dining and entertainment specials; see msnonmass.com for updates.

Oskaloosa Old Settlers Reunion, through Saturday night; see oosr.org for full details and schedule.

Kaw River Roots Festival, performances beginning 5:30 p.m., Abe & Jake’s Landing, 8 E. Sixth St. Continues through Sunday; see kawriverroots.com for schedule and ticket information.

Summer Youth Theatre: “Puffs, or Seven Increasingly Eventful Years at a Certain School of Magic and Magic,” 7 p.m., Lawrence Arts Center, 940 New Hampshire St. See lawrenceartscenter.org for ticket information.

Dance performance: “CONVERGE II: New Spaces,” 7 p.m., 10th & Mass Studios, 1000 Massachusetts St., Suite D. Free admission; details at lawrenceartscenter.org.

Opening night of Sunflower Music Festival, 7:30 p.m., White Concert Hall, 1700 SW Jewell Ave., Washburn University, Topeka. Nine nights of chamber, orchestra and jazz concerts from internationally recognized professional musicians. All concerts free; see sunflowermusicfestival.org for full schedule.

Saturday, June 22:

Lawrence Farmers’ Market, 7:30-11:30 a.m., 824 New Hampshire St.

Tree Tour, 10 a.m., Library Lawn and Watson Park. Meet at the Lawrence Public Library lobby at 10 a.m. for a tour of nearby trees.

“Leave No Trace” Camping Guide, 10-11:30 a.m., Prairie Park Nature Center, 2730 Harper St. Tickets $7; enroll at lprd.org.

The Really Really Free Market, 10 a.m.-1 p.m., Clinton Park, 901 W. Fifth St.

“How to Get Your Security Deposit Back: Training with Kansas Legal Services,” 2-3:30 p.m., Lawrence Public Library auditorium, 707 Vermont St.

Summer Youth Theatre: “Puffs, or Seven Increasingly Eventful Years at a Certain School of Magic and Magic,” 2 p.m. and 7 p.m., Lawrence Arts Center, 940 New Hampshire St. See lawrenceartscenter.org for ticket information.

Kaw River Roots Festival, performances beginning 3 p.m., Abe & Jake’s Landing, 8 E. Sixth St. See kawriverroots.com for schedule and ticket information.

St. John’s Mexican Fiesta, 4-10 p.m., St. John the Evangelist Catholic Church, 1234 Kentucky St.

“Railroaded: The Industry That Shaped Kansas,” 5:30 p.m., Wakarusa River Valley Heritage Museum, 716 North 1190 Road. Free and open to the public.

Benjamin Cartel & Friends, doors 6 p.m., show 7 p.m., Saint Margaret’s Parish Hall, 5700 W. Sixth St. Admission $10.

Sunday, June 23:

Kaw River Roots Festival: Bluegrass Brunch, performances beginning 11 a.m., Lucia, 1916 Massachusetts St. See kawriverroots.com for schedule and ticket information.

“Sing with the Seasons: Summer Solstice,” 11 a.m.-12:30 p.m., Delaware Street Commons, 1222 Delaware St.

Kansas Postdoctoral Outreach Project: “Exploring the Human Body with K-POP,” 2-4 p.m., KU Natural History Museum, 1345 Jayhawk Blvd. Free family event.

Priscilla Howe: Story Night in the Backyard, 6:30-7:15 p.m., 415 Elm St. Songs, puppets, stories. Bring blankets or lawn chairs, bug repellent. Designed for children, but grownups are welcome. Tips appreciated but not required.

Monday, June 24:

Closing Reception: Zak Barnes, “Dreamscapes,” 6-7 p.m., Cider Gallery, 810 Pennsylvania St.

Lawrence Parks & Rec: Coffeehouse Dance, 6:30-8 p.m., Douglas County Fairgrounds, 2120 Harper St. Ages 16 and up, admission $18; sign up at lprd.org.

Tuesday, June 25:

Lawrence Job Fair, 2:30-5 p.m., Sports Pavilion Lawrence, 100 Rock Chalk Lane.

Legal Help at the Library, 4-7 p.m., Lawrence Public Library Study Room 4, 707 Vermont St.

Ken Lassman: “Native Plant Identification Walk,” 6 p.m., Prairie Park Nature Reserve, 2730 Harper St.

Free State Festival: Comedy with Jana Schmieding, 7 p.m., Lawrence Arts Center, 940 New Hampshire St. Tickets $25; see freestatefestival.org.

Cicada Open Mic, 7-8 p.m., Lawrence Public Library, Meeting Room B, 707 Vermont St. Free admission.

Wednesday, June 26:

Afternoon Dances of Peace, 4-5 p.m., Delaware Street Commons, 1222 Delaware St. Free, all welcome; see dancesofuniversalpeace.org for details.

Free State Festival: Music with Makaya McCraven, 7-8:30 p.m., Liberty Hall, 644 Massachusetts St. Tickets $25; see freestatefestival.org.

Science on Tap: Ben Sikes, “Fungi and Space Exploration,” 7:30 p.m., Free State Brewing Co., 636 Massachusetts St.

Lawrence City Band Concert Series: “James Barnes, Andrew Lloyd Webber, and Journey,” 8 p.m., South Park, 1141 Massachusetts St. Free and open to the public. (See social media for weather relocations.)

Astronomy Associates of Lawrence: Summer Public Observing, 9 p.m. (after City Band concert), South Park, 1141 Massachusetts St. (Weather permitting.)

Thursday, June 27:

Cottin’s Farmers Market, 4-6:30 p.m., 1832 Massachusetts St.

Free State Festival: Film, “Another Body,” 5 p.m., Liberty Hall, 644 Massachusetts St. Tickets $10; see freestatefestival.org.

Will Averill hosts “Summer Trivia at the LJCC,” 7 p.m., Lawrence Jewish Community Congregation, 917 Highland Drive. $10 admission.

Studio 901 House Concerts: Matthew Carlson, 7 p.m., 901 Pennsylvania St.

Free State Festival: “Short & Sweet: Short Film & Candy Pairings,” 8 p.m., Liberty Hall, 644 Massachusetts St. Tickets $15; see freestatefestival.org.