No active half-staff order applies to Missouri.
Last checked Sep 22, 2026, 1:01 AM UTC.
The flag is currently full-staff. The next known order appears below.
Federal law requests that the U.S. flag be displayed at half-staff from sunrise to sunset on National Pearl Harbor Remembrance Day. The observance honors the service members and civilians who died in the December 7, 1941 attack and remembers the sacrifice that drew the nation into World War II.
Public Law 107-51 provides for the U.S. flag to be lowered to half-staff from sunrise to sunset for the National Fallen Firefighters Memorial Service. This observance honors firefighters who died in service to their communities and invites the country to pause in gratitude for their sacrifice.
The U.S. Flag Code provides that the flag is displayed at half-staff until noon on Memorial Day, then raised to full-staff for the remainder of the day. The morning lowering honors those who died while serving in the U.S. Armed Forces, while the noon raising symbolizes the nation carrying their legacy forward.
Choose your state or territory manually, tap the map, or allow location access for an automatic match.
Choose how Mast should alert you for your selected location.
Get federal alerts on this device.
Open Mast in Safari and tap the Share button.
Choose “Add to Home Screen” from the share sheet.
Mast will appear like an app on your Home Screen.
Get federal alerts delivered to your inbox.
Get federal alerts delivered by text message.
Browse plain-language explainers for U.S. flag etiquette, half-staff terminology, state status pages, and national days of remembrance.
Mast is an informational flag-status tool. It helps answer whether a U.S. flag should be flown at full-staff or half-staff, why the order is active, and where to verify the official source.
Mast watches federal and state flag-status sources for half-staff orders, observances, and official notices.
Each detected order is organized by location, authority, start date, end date, and source so the current status is easier to read.
Mast is informational, so active orders include a source link when available and should be verified with the official notice when it matters.
Half-staff means lowering the flag below the top of the staff as a sign of mourning, remembrance, or honor for the period named in an official order.
Power badges, dashboards, and signage with current half-staff status.
Return whether flags are currently half-staff or full-staff for a selected jurisdiction, including the authority, active order, official source link, and timing Mast is using.
/api/v1/status?countryCode=US&stateCode=CO
If this site is useful, consider buying me a coffee to help keep it maintained.
Notice inaccurate information? Send the selected location and a short note so Mast can review the official source.
Mast tracks current federal flag orders and known Missouri local orders so residents, public buildings, schools, businesses, and local websites can quickly check whether flags should be at half-staff or full-staff today.
The Missouri source in Mast is Missouri Office of Administration / Missouri Governor, categorized as Official State Flag Notifications. Missouri does not publish a dedicated current-status page in the source registry, so Mast checks official notices and dated directives. Mast also uses the source to track historical Missouri half-staff notices when dated orders are available.
Missouri publishes a dedicated Office of Administration Flag Notifications archive plus Governor press releases. The importer derives current status from retained dated notices and parses sunrise-to-sunset one-day orders, sunrise-to-noon Memorial Day notices, and beginning/immediate-through-date lowering windows.
Mast answers a common question quickly: should a flag be at half-staff or full-staff today? The page shows the current status, the relevant authority, date range, and source when a known order is available.
The public API can also provide flag status data for websites, dashboards, signage, and small automations that need a simple JSON response.