More than 1.3 million utility customers across a swath of states from Oklahoma to Connecticut lost power during the July 4, 2026, heat wave, and for the vast majority of those customers, the experience was a hardship. But for the estimated 3 million or more Americans who depend on electrically powered home medical equipment, the outage was something categorically different: a compounded medical emergency in which dangerous external heat and loss of essential life-support equipment converged simultaneously.
According to NBC News and PowerOutage.us, Michigan led the outage count with more than 305,000 customers in the dark; New Jersey followed with more than 124,000; Pennsylvania exceeded 151,700; and Missouri reported more than 100,000 without power. Total outages exceeded 1.3 million on July 4 and climbed toward 900,000 the following day as additional storm systems moved through.
