Severe thunderstorms forced a temporary evacuation of the National Mall in Washington, DC, on July 4, 2026, delaying President Donald Trump's scheduled Independence Day speech during the US 250th anniversary celebrations [1, 2, 3, 4]. Trump vowed to deliver his speech "no matter what," and organizers rescheduled it to 11:00 pm local time (03:00 GMT), one hour later than originally planned [1, 2, 3, 4].

Temperatures in Washington soared to around 102 degrees Fahrenheit (39 degrees Celsius), contributing to cancellations of other July 4 events and the temporary closure of parts of the Great American State Fair [1, 2, 5, 3, 4]. The fair had already shut down briefly on July 3 due to extreme heat before reopening in the evening [5].

Thousands gathered at the National Mall amid the record-breaking heat, where the event organizing group Freedom 250 largely controlled the 250th anniversary celebrations, which also attracted conservative groups and the white nationalist group Patriot Front [1, 2]. The evening fireworks display was expected to be potentially record-breaking, featuring more than 850,000 pyrotechnic effects [5, 4].

The heat wave and storms led to cancellations or rescheduling of Independence Day parades, fireworks, and other events in multiple cities, including Hartford, Harrisburg, Wilkes-Barre, Boston, Philadelphia, and Pittsburgh [2].

During the evacuation, security screenings were temporarily suspended but resumed later, with attendees re-admitted after going through screening again [1, 3]. Trump expressed defiance against the weather on social media, writing on Truth Social, "I will be there no matter what. It's Saturday night, LETS HAVE SOME FUN, even if we are out late tonight" [1]. He also said, "Storms bring luck to whatever the occasion... We will wait it out, I don’t care if it’s 2:00 O’Clock in the morning, or in one hour from now... I’m not going to let some rain stop our 250th" [3, 4].

Trump delivered his delayed Independence Day speech around 11:00 pm local time after the storm had passed [1, 2, 3, 4].