National Park Week shifts to August

National Park Week will move to late August in 2026, breaking with its usual April timing. (nps.gov) The National Park Service says the 2026 celebration will run from August 22 to August 30. Entrance fees will be waived on August 25, the agency’s 110th birthday. (nps.gov) The Department of the Interior announced the shift on March 20 and tied it to two anniversaries: the Park Service’s 110th birthday and the 250th anniversary of American independence. The 2026 theme is “Celebrate America’s Story.” (doi.gov) National Park Week has typically been staged in April around Earth Day, and local coverage in Tennessee and Oklahoma noted that 2026 is the exception. The National Park Service’s own 2026 page now lists only the August dates. (knoxnews.com) (nps.gov) For travelers in Oklahoma, the timing change pushes trip planning out of spring and into the hottest stretch of summer. The Oklahoman’s local guide pointed readers toward parks within driving distance rather than treating the week as an April tradition. (usatoday.com) Oklahoma does have National Park Service sites of its own, including Chickasaw National Recreation Area near Sulphur and Oklahoma City National Memorial in downtown Oklahoma City. The Park Service’s Oklahoma directory also lists Fort Smith National Historic Site, which spans Arkansas and Oklahoma. (nps.gov 1) (nps.gov 2) The 2026 schedule also stretches across two weekends, from Saturday, August 22, through Sunday, August 30. That gives parks more room for ranger programs, Junior Ranger activities and anniversary events before the fee-free day lands on a Tuesday. (nps.gov) The practical takeaway is simple: anyone who usually looks for National Park Week in April will need to wait until August this year. The next key date is August 25, when fee-charging parks will open free to United States residents. (nps.gov)