July 4 federal holiday 2026: Millions of Americans are set to experience scorching temperatures during the July 4 holiday weekend as a powerful heatwave spreads across large parts of the United States. The National Weather Service has warned of record-breaking heat for many parts of central and eastern US through Friday and will continue along the East Coast through the weekend, reports AP.
Weather officials have warned that dangerous heat and humidity could affect outdoor celebrations, travel plans, sporting events and holiday gatherings ahead of July 4 weekend, with some regions expected to see temperatures climb into the 90s and even triple digits. The heat is forecast to linger through the Independence Day weekend, increasing the risk of heat-related illnesses for vulnerable groups.