Barber Park Events Calendar 2027
These are the Boise events that have dates for 2027 so far. They are below, month by month, with the venue and the one reason each is worth planning a day around. Months that have not published a date say so, and say when their program usually appears.
The float season is closed for 2026 — the 2026 season ran June 20 to Labor Day, September 7. Ada County has not announced the 2027 season; it typically runs mid-June through Labor Day and the county says weather and water conditions can affect the opening and closing dates. Barber Park itself is open all year, with gates from 8 a.m. to sunset.
- Idaho Shakespeare Festival tickets go on sale November 16, 2026 at 10 a.m., covering all five 2027 plays, Les Misérables included.
- The Book of Mormon and Mark Twain Tonight! are both on sale now at the Morrison Center.
- Greenbelt Relays registration for 2027 is not open yet — the race's own page is still setting the 2027 start and finish.
- Check-in for the Polar Bear Challenge opens at 10 a.m. on the day; entries are handled by Make-A-Wish Idaho.
📅 Download the 2027 Calendar
Download 2027 Calendar (iCal) - every dated event in one file, kept in step with this page
January 2027
Two dates, and they could not be less alike: a plunge into Lucky Peak Reservoir on the 9th, and a Broadway week at the Morrison Center at the end of the month.
WATCH & LISTEN
Mrs. Doubtfire
📅 Tuesday, January 26, 2027 at 7:00 PM – Sunday, January 31, 2027. Eight performances: January 26–29 at 7 p.m.; January 30 at 1 p.m. and 7 p.m.; January 31 at 1 p.m. and 6:30 p.m.
A Broadway tour in the dead of a Boise January, with 1 p.m. matinees on the Saturday and Sunday. The float season is months away, so the indoor stage is the whole plan that week.
📍 Location: Velma V. Morrison Center, 2201 W Friendship Lane, Boise
🌐 More Information: Official Website
LEARN & DO
Gebert-Arbaugh Polar Bear Challenge
📅 Saturday, January 9, 2027 at 10:00 AM — plunge at 11 a.m., window to 12:30 p.m.
Make-A-Wish Idaho's 24th annual plunge — the one morning on this calendar when the water is the point rather than the view. Register from 10, in by 11.
📍 Location: Spring Shores Marina, Lucky Peak State Park, 74 Arrowrock Rd, Boise 83716
🌐 More Information: Official Website
Not yet published: Lucky Peak's First Day Hikes and the Golden Eagle Audubon walks at Barber Park both run in January in other years; neither has a 2027 date yet.
February 2027
One night, one performance, and nothing else confirmed.
WATCH & LISTEN
Mark Twain Tonight!
📅 Saturday, February 6, 2027 at 7:00 PM. One performance.
A one-night booking in a season of week-long runs — Hal Holbrook's Twain, one show at 7 p.m., and no matinee to fall back on.
📍 Location: Velma V. Morrison Center, 2201 W Friendship Lane, Boise
🌐 More Information: Official Website
Not yet published: Nothing else in February is confirmed for this page yet.
March 2027
Treefort opens on the last Wednesday of the month and runs straight into April, so March is one date with a five-day tail.
WATCH & LISTEN
Treefort Music Fest (15th edition)
📅 Wednesday, March 31, 2027 – Sunday, April 4, 2027. Five days; only the opening night falls in March.
The fifteenth edition puts its main stage in Julia Davis Park — and it is the one booking here you cannot treat as a night out, because it runs from Wednesday to Sunday and no single night stands for it.
📍 Location: Downtown Boise, with the main stage at Julia Davis Park
🌐 More Information: Official Website
Not yet published: The Boise Flower and Garden Show is a March fixture, but only the show itself has published 2027 dates so far, so it is not listed yet.
April 2027
Three dates: the spring's big-room show closes in the first week, a new Broadway run lands in the middle of the month, and the Greenbelt turns into a race course on the 24th.
WATCH & LISTEN
The Book of Mormon
📅 Tuesday, March 30, 2027 at 7:00 PM – Sunday, April 4, 2027. Eight performances: March 30 and 31, April 1 and 2 at 7 p.m.; April 3 at 1 p.m. and 7 p.m.; April 4 at 1 p.m. and 6:30 p.m.
Nine Tony Awards and eight performances, closing on the first Sunday of April — the same week Treefort fills downtown, so take a matinee if you are doing both.
📍 Location: Velma V. Morrison Center, 2201 W Friendship Lane, Boise
🌐 More Information: Official Website
The Great Gatsby
📅 Tuesday, April 20, 2027 – Sunday, April 25, 2027.
A Tony Award-winning new musical, staged as a week-long run at the Morrison Center in the middle of the month.
📍 Location: Velma V. Morrison Center, 2201 W Friendship Lane, Boise
🌐 More Information: Official Website
LEARN & DO
Boise Greenbelt Relays & 50-Mile Ultra
📅 Saturday, April 24, 2027. Start time not yet published; the 2026 race started at 8 a.m. and the course closed at sunset.
Solo runners take the full 50 miles and relay teams split the 45-mile loop along both sides of the river — the one day the Greenbelt is a race course instead of a way to get somewhere.
📍 Location: Boise. The 2027 start and finish are not yet set; in 2026 they were at Ann Morrison Park.
🌐 More Information: Official Website
Not yet published: The race's own page still says the 2027 start and finish are being set, and registration for 2027 has not opened.
May 2027
The fullest month here: three rows — a marathon on the Greenbelt, a Broadway run at the Morrison Center, and the Shakespeare season opening a week later.
WATCH & LISTEN
Idaho Shakespeare Festival — Les Misérables
📅 Friday, May 21, 2027 at 8:00 PM – Saturday, June 12, 2027. Tuesday to Saturday at 8 p.m., Sunday at 7:30 p.m.; house opens 6:30 p.m.
The season opens with the big one — Les Misérables on the outdoor stage, preview on May 21 and opening night on May 22 — and it is the first of five plays.
📍 Location: Idaho Shakespeare Festival amphitheater, 5657 E Warm Springs Ave, Boise
🌐 More Information: Official Website
A Beautiful Noise: The Neil Diamond Musical
📅 Tuesday, May 18, 2027 – Sunday, May 23, 2027.
The Neil Diamond jukebox musical, made in collaboration with Diamond himself, in a week-long run at the Morrison Center to open the month.
📍 Location: Velma V. Morrison Center, 2201 W Friendship Lane, Boise
🌐 More Information: Official Website
LEARN & DO
YMCA Famous Idaho Potato Marathon & Fun Runs
📅 Saturday, May 15, 2027 at 7:00 AM — half marathon 9 a.m., 10K 10 a.m.
A Boston-qualifying marathon on the flat Greenbelt — and with the half at 9 and the 10K at 10, a fast friend and a slow one can race the same morning.
📍 Location: Starts and finishes at the Morrison Center on the Boise State campus, 2201 W Friendship Lane (formerly Cesar Chavez Lane), Boise
🌐 More Information: Official Website
Not yet published: The Boise Farmers Market has not published its 2027 season dates or hours.
June 2027
A touring show closes on the 13th, then the second play of the Shakespeare season opens on the 18th and runs into July.
WATCH & LISTEN
The Sound of Music
📅 Tuesday, June 8, 2027 – Sunday, June 13, 2027.
The touring season's closer at the Morrison Center, and the last Broadway title before the summer — it lands a week before the Shakespeare season's second play opens.
📍 Location: Velma V. Morrison Center, 2201 W Friendship Lane, Boise
🌐 More Information: Official Website
Idaho Shakespeare Festival — The Importance of Being Earnest
📅 Friday, June 18, 2027 at 8:00 PM – Saturday, July 10, 2027. Tuesday to Saturday at 8 p.m., Sunday at 7:30 p.m.; house opens 6:30 p.m.
Wilde's mistaken-identity farce, the second of the festival's five plays, opening four weeks after Les Misérables and running into the second week of July.
📍 Location: Idaho Shakespeare Festival amphitheater, 5657 E Warm Springs Ave, Boise
🌐 More Information: Official Website
Not yet published: The 2027 float season is the other June date this page would carry, and Ada County has not announced it. It is the date this site waits on most.
July 2027
Midsummer, and one long-running play.
WATCH & LISTEN
Idaho Shakespeare Festival — The Murder of Roger Ackroyd
📅 Friday, July 16, 2027 at 8:00 PM – Saturday, August 7, 2027. Tuesday to Saturday at 8 p.m., Sunday at 7:30 p.m.; house opens 6:30 p.m.
Agatha Christie's Poirot on an outdoor stage — the third of the festival's five plays and the one that runs into the first week of August.
📍 Location: Idaho Shakespeare Festival amphitheater, 5657 E Warm Springs Ave, Boise
🌐 More Information: Official Website
Not yet published: Nothing else in Boise is dated for July 2027 yet.
August 2027
The last full month of summer, with one date in it.
WATCH & LISTEN
Idaho Shakespeare Festival — The Lion in Winter
📅 Friday, August 13, 2027 at 8:00 PM – Saturday, August 28, 2027. Tuesday to Saturday at 8 p.m., Sunday at 7:30 p.m.; house opens 6:30 p.m.
The Angevin family Christmas that Katharine Hepburn and Peter O'Toole filmed — here as the fourth of the festival's five plays, in the last two weeks of summer.
📍 Location: Idaho Shakespeare Festival amphitheater, 5657 E Warm Springs Ave, Boise
🌐 More Information: Official Website
Not yet published: The Wild River Dash, the paddle-and-run duathlon at Esther Simplot Park, has not published a 2027 date.
September 2027
The season closes, and every curtain moves half an hour earlier.
WATCH & LISTEN
Idaho Shakespeare Festival — The Comedy of Errors
📅 Friday, September 3, 2027 at 7:30 PM – Sunday, September 26, 2027. House opens 6 p.m., curtain 7:30 p.m.; Sundays at 7 p.m.
The festival's fifth and last play, with the earliest evening curtain on this calendar — and the last chance at the amphitheater this year.
📍 Location: Idaho Shakespeare Festival amphitheater, 5657 E Warm Springs Ave, Boise
🌐 More Information: Official Website
Not yet published: The Spirit of Boise Balloon Classic and Art in the Park both fall in September at parks along this stretch of the river; neither has a 2027 date confirmed by a second source yet.
October 2027
No 2027 dates yet. Taste of Downtown has said it will return in 2027 but has not published dates. Boo at the Zoo and Fright Nights at the Old Idaho Penitentiary have not published dates either. Boise's autumn program is announced from late summer.
November 2027
No 2027 dates yet. The Festival of Trees, the Boise Holiday Parade and the downtown tree lighting are all November fixtures in Boise, and none of the three has a 2027 date.
December 2027
No 2027 dates yet. Ballet Idaho's Nutcracker, the Idaho Botanical Garden's Winter Garden aGlow and the Idaho Potato Drop on New Year's Eve are December fixtures in Boise; all three have published 2026 dates only.
Every date on this page was checked against the event's own site on November 7, 2026. Where a month has no date, it is because nothing has been published for it yet — not because nothing happens in Boise. The 2026 calendar shows what the same months looked like with a full year of notice.