Third Heat Dome in a Month to Impact 70 Million Across U.S.
Third Heat Dome in a Month to Impact 70 Million Across U.S.
US · Published Jul 26, 2026
A third major heat dome in just one month is set to affect approximately 70 million people across the southern and central United States, according to The Guardian.
Temperatures are expected to range between 95°F and 105°F (35°C to 40°C), with some areas in the southwestern desert potentially reaching 120°F (48°C).

Impact & Risks

The heatwave is expected to exacerbate health risks, particularly for vulnerable groups such as the elderly, children, and those with pre-existing health conditions. The lack of cooling relief during nighttime hours and high humidity levels will increase the risk of heat-related illnesses, including heatstroke. The heatwave is also likely to disrupt daily activities and could lead to record-breaking temperatures in areas like Denver. The event is part of a broader trend of more frequent and severe heatwaves, attributed to the ongoing climate crisis.

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