New heat wave sweeps across the US, breaking records in July 2026

A severe heat wave is engulfing the United States, with over 44 million Americans under heat advisories as temperatures soar to unprecedented levels. On Saturday, July 12, 2026, the National Weather Service warned that temperatures in the Rocky Mountains and northern Plains could reach as high as 43°C (110°F) over the weekend. Cities like Salt Lake City are bracing for record-breaking heat.

Record-Breaking Temperatures Expected

The National Weather Service's Weather Prediction Center indicated that dangerous heat would persist throughout the weekend, with expected highs reaching between 38°C and 43°C (100°F–110°F) in states like Montana and North Dakota. “Dangerous heat is expected to unfold through the weekend with triple-digit highs and potential for daily maximum temperature records both days,” they stated.

This extreme weather event follows a previous heat wave that gripped the eastern United States, pushing temperatures to around 40°C (104°F) in major cities such as New York and Philadelphia just a week ago.

Impact on Wildfires and Events

The blistering heat has complicated firefighting efforts in Colorado and Utah, where massive wildfires are ongoing. In addition, Miami is feeling the heat as it hosts the England–Norway World Cup quarterfinal match, attracting fans amidst the sweltering conditions.

As a result of this extreme weather, several notable landmarks in France, including the Eiffel Tower, have announced early closures due to the intense heat affecting quarter of the country.

Global Context of Increasing Heat Waves

Globally, heat waves are becoming increasingly common and severe, primarily attributed to climate change driven by the burning of fossil fuels and greenhouse gas emissions. In Western Europe, the recent heat wave resulted in over 1,300 fatalities, according to the World Health Organization, marking it as one of the deadliest in recent history.

As climate patterns shift, the frequency of such extreme weather events raises concerns about public health and safety across the globe.