Flower Mound, Texas Civic Calendar — 2026

Commemorates the 1836 Texas Declaration of Independence. Observed statewide.

Federal income tax returns due. Extensions filable via Form 4868.

Marks the 1836 Battle of San Jacinto that secured Texas independence. A Texas state holiday.

A free outdoor concert series featuring cover and tribute bands on Friday evenings throughout May at Heritage Park. Held at Heritage Park, 600 Spinks Rd..

An annual one-day festival at Heritage Park with live performances, local art vendors, art-making activities, and food trucks. Held at Heritage Park, 600 Spinks Rd..

Atlantic hurricane season runs June 1 – November 30. Local emergency-management offices issue regular updates during active storms.

Flower Mound's Fourth of July celebration featuring a children's parade, live music, family activities, and a fireworks show. Held at Bakersfield Park, 1201 Duncan Ln..

Most Texas school districts begin the academic year in mid-to-late August.

A two-day fall community festival held at the Flower Mound River Walk with activities and entertainment for all ages. Held at Flower Mound River Walk.

General election day in even-numbered years.

An annual holiday parade of lights and tree-lighting ceremony marking the start of the holiday season in Flower Mound. Held at Downtown Flower Mound / Town Hall area.