ShamROCKS the Fox McHenry – St. Patrick’s Day Festival

March 13–15, 2026

Celebrate St. Patrick’s Day in McHenry with ShamROCKS the Fox!

A three-day festival filled with Irish spirit, riverfront traditions, and community fun. Highlights include the Fox River dyeing, Shamrock Shuffle 5K, parade, live music, and local food vendors—all set in the heart of downtown McHenry, Illinois.

Grand Festival Sponsor

 

Steffan's Jewelers


Gold Sponsors

Silver Sponsor

Whiskey Diablo

Event Schedule & Weekend Highlights

Friday, March 13

Saturday, March 14

Kiwanis Shamrock Shuffle 5k Mar 14

McHenry Kiwanis presents the Annual McHenry Shamrock Shuffle in Loving Memory of the Life and Volunteerism of Robert J. Mortell. https://runsignup.com/Race/IL/Mchenry/McHenryShamrockShuffle

McHenry ShamROCKS the Fox - River Dyeing Mar 14

Don't miss McHenry's annual dyeing of the Fox River! In partnership with Blarney Island, the City of McHenry dyes the river a vibrant shade of green! View the festivities from the Pearl Street bridge which will be closed to traffic.

Sunday, March 15

Frequently Asked Questions

What is ShamROCKS the Fox?

ShamROCKS the Fox is an annual St. Patrick’s Day festival in McHenry, Illinois, featuring the Fox River dyeing, the Shamrock Shuffle 5K, a festive parade, live music, food vendors, and family-friendly activities throughout the weekend.

When is ShamROCKS the Fox held?

ShamROCKS the Fox takes place each March during St. Patrick’s Day weekend. Events typically run Friday through Sunday and include multiple activities scheduled throughout downtown McHenry. This year's festivities are on March 13-15, 2026.

Where does ShamROCKS the Fox take place?

Events are held throughout downtown McHenry along the Fox River, including Miller Point and nearby riverfront areas. Specific event locations may vary by activity.

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Is ShamROCKS the Fox family-friendly?

Yes, ShamROCKS the Fox is a family-friendly event. Activities include kid-friendly entertainment, parade viewing, live music, and community celebrations suitable for all ages.

Is the Fox River really dyed green?

Yes! One of the most popular traditions of ShamROCKS the Fox is watching the Fox River turn green in celebration of St. Patrick’s Day. The river dyeing typically takes place on Saturday and draws large crowds. You can see the river dyeing on the Pearl Street Bridge, at Miller Point Park and Weber's Park.

Do I need tickets to attend ShamROCKS the Fox?

Most ShamROCKS the Fox events are free and open to the public. Some activities, such as the Shamrock Shuffle 5K require pre registration and a fee. 

Will there be food and drinks available?

Yes, the festival grounds feature local food trucks and a beverage tent. Restaurants and bars throughout town will also have specials. 

Where can I find parking for ShamROCKS the Fox?

Parking is available throughout downtown McHenry. Visitors are encouraged to arrive early, use public parking areas, and follow event signage for the best parking options.

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