Severe weather on Saturday disrupted celebrations marking the United States' 250th anniversary of independence, forcing evacuations and event delays, including a thunderstorm that postponed a speech by President Donald Trump in Washington, D.C.

Thousands gathered on the National Mall in the US capital for the July 4th festivities, but were evacuated as a storm approached. The event organizers, Freedom 250, announced that attendees would be readmitted and President Trump would speak later than originally scheduled.

Trump confirmed his attendance, posting on social media, "I will be there no matter what." He added, "It’s Saturday night, LETS HAVE SOME FUN, even if we are out late tonight."

Across the nation, severe weather impacted other July 4th events. In New York City, authorities moved up the start time for a large fireworks display due to storm threats, which ultimately did not materialize, allowing thousands to enjoy the show. However, celebrations were canceled in Hartford, Connecticut, and in Harrisburg and Wilkes-Barre, Pennsylvania.

Spectators in Boston were temporarily asked to seek shelter during fireworks and a concert before events resumed. Philadelphia also ordered an evacuation. Pittsburgh proceeded with its fireworks but adjusted the timing to account for the weather.

In Washington, D.C., crowds had begun gathering on the National Mall hours before the evacuation, with attendees facing heightened security and temperatures reaching 39 degrees Celsius (102 degrees Fahrenheit). The record-breaking heat wave had already led to the cancellation of several parades and other events in the region.

Despite the disruptions, some attendees expressed a willingness to endure the conditions. "It’s just part of the deal I signed up for," said Glen Solander, 60, a visitor from Sioux Falls, South Dakota, who was waiting at a security checkpoint. The event also saw the presence of the white nationalist organization Patriot Front, whose members traveled to the city. Local police reported no incidents involving the group.