Patio Opening
June 1, 2026
We invite you to step outside and experience the best of summer on our riverside patio. Unwind with a refreshing cocktail after a day on the water or enjoy a perfectly prepared dinner - there is no better backdrop than the Missouri River. Open 7 days a week starting June 1.
Call 406.622.1882 to make a reservation or inquire about a private party on the patio!
SUMMER CELEBRATION
June 26 & 27, 2026
Experience the magic of summer in Fort Benton. The 50th Golden Anniversary of Summer Celebration is coming to the banks of the Missouri River this June 26 - 28, 2026, and the Grand Union is your front row seat to all the festivities! Enjoy family fun, indulge at the food trucks and dance the night away to live music.
Hotel room reservations will open March 1, 2026 and bookings will be on our website only.
Hotel Schedule
FRIDAY Live music and cocktails on the patio. Bar opens at 3 PM.
SATURDAY Our famous Loaded Grand Caesars return - stop by and pick one up before the parade at 10 AM.
SUNDAY Breakfast buffet for guests 8 AM - 11 AM.
Fourth of July
July 4, 2026
Celebrate the 4th of July at the Grand Union Hotel! Where history meets hospitality and summer memories are made. Join us at the Union Grille for the ultimate riverside Fourth of July Cookout. Relax by the Missouri and enjoy an evening with elevated backyard classics, delicious summer cocktails, nostalgic charm and community spirit.
4-8 PM
HALLOWEEN
October 31, 2026
Spend the night at the hotel and maybe you’ll meet some of our ghostly residents...
Winter Celebration
December 2026
UPDATES FOR THIS EVENT FALL 2026
Communities in Chouteau County open their doors to welcome the Holiday Season. Check off your Christmas shopping lists by supporting all your favorite small and local businesses.
BRUNCH WITH SANTA
December 21, 2025
UPDATES FOR THIS EVENT FALL 2026
Come have a very special brunch with us and Santa! Brunch will be served 10 am to 2 pm. Seats will fill up fast!
GINGERBREAD HOUSE DECORATING CONTEST
December 21, 2025
UPDATES FOR THIS EVENT FALL 2026
Join the Grand Union for our third annual Gingerbread House contest! Bring your already finished house to the hotel 10:00 am – 12:00 noon, we’ll set them up! The community is welcome to come view & vote (1:00 – 4:00 pm) for their favorites. We’ll be serving complimentary cocoa and cookies! We have child and adult categories… all are welcome to participate! We’ll be giving out prizes for your creativity, so please stop by even if you’re not a baker. Our only requirement is that all entries must be made of edible components. We look forward to hosting this fun community event!
JAZZ DINNER
December 20, 2025
UPDATES FOR THIS EVENT IN FALL 2026
Serving dinner 5 - 9 pm
Live music from 6-9 pm with musical guests Rob Kohler & Chris Rockeman
Prime Rib Dinner special $65
Call now to reserve a table 406.622.1882
NEW YEARS EVE
December 31, 2026
Start your year off in Grand Style with the Historic Grand Union!
Serving from 5 - 9 pm with a special dinner. All reservations are pre-paid.
New Years Day Breakfast Buffet
January 1, 2026
Join us from 9 am - 1 pm for our New Years Day Breakfast Buffet.
$25 pp or book a New Years Eve package - buffet breakfast included!
VALENTINE'S DAY
February 13, 14 & 15, 2026
The ultimate Valentine's Date Night: Stay, Dine & Unwind. Escape the ordinary this Valentine's Day with a curated getaway designed for connection and indulgence. From a candlelit dinner to a lazy morning feast, we've handled every detail so you can focus on each other.
Enjoy a 25% discount on room rates, $100 towards dinner in the Union Grille and breakfast buffet the next morning.
To book the Package, click on the Book link to the left, pick your room, click “add to stay” and select the Valentine's Day room package that fits your room choice.
Package rate is per night.
All reservations will be prepaid 10 days prior to arrival.
Make your Valentine's stay a little sweeter and add handmade truffles, chocolate covered strawberries, wine, champagne or flowers to your reservation and have them waiting in your room upon arrival.
Select "add to stay" or call the front desk to add to your reservation.
Please call us to make your dinner reservations 406.622.1882
Culinary Pop Up
March 6, 7 & 8, 2026
For one weekend only, we're trading our classic fare for the bold, rustic flavors of Italy; blending our historic Montana charm with the soul of Italy.
Call 406.622.1882 for a reservation!
EASTER
April 5, 2026
We invite you and your family to join us in the Union Grille for a premier holiday meal, serving from 12 PM - 5 PM on Easter Sunday.
Our chef has curated a menu to celebrate the arrival of Spring, utilizing high quality ingredients and the refined Montana hospitality which defines our historic dining room.
Call 406.622.1882 to reserve your table now.
MOTHER'S DAY
May 10, 2026
Celebrate Mom is Grand Style!
Treat Mom to the day she deserves at the historic Grand Union Hotel. Our dining room offers the perfect backdrop for a day dedicated to gratitude, family and exquisite flavor. Enjoy a 3 course meal in the Union Grille; Serving from 11:00 a.m. to 4:00 p.m.
Reservations are highly recommended as seats will fill up quickly. Call us at 406.622.1882
OCCASIONS
Interested to book a venue for your own special occasion? Whether you’re planning a private celebration, a one-of-a-kind wedding, a casual work outing, or a corporate function, the Grand Union Hotel team will make it extraordinary.




















