July 21, 2026

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Six heat-related deaths in Cook County marks July as the deadliest month in more than a decade

Six people in Cook County have died from heat-related causes in July so far, marking the deadliest stretch of extreme hot-weather deaths since at least 2015.

Victor Ferguson is the latest person to be identified who died amid the scorching heat wave earlier this month. Ferguson died July 2 from a heat stroke with ethanol intoxication as a secondary cause, according to new records from the Cook County medical examiner’s office. He was 48.

Four of the people who died were younger than 60 years old. In all six deaths logged in Cook County so far, the high temperature ranged from 88 to 95 degrees on the early July day they either died or were hospitalized, according to an analysis of National Weather Service data by WBEZ and the Chicago Sun-Times. During that first week of July heading into the July 4th weekend, Cook County was under an extreme heat warning.

The other people whose deaths have been attributed to the heat include: Stephanie Rodriguez, 45; David Gonzalez, 44; Barbara Whigham, 71; Mike Rodriguez, 57; and Daniel Machnikowski, 69, according to the medical examiner’s office.

chart visualization

Since Chicago’s 1995 heat wave that killed more than 700 people, the city has suffered through at least two other major deadly heat waves: 110 people died in 1999 and a 2012 heat wave claimed 22 lives.

Marc Raifman, who works with the Extreme Weather Planners Coalition, said city officials should work with community members to examine the circumstances that led to the deaths earlier this month.

“Why aren’t we looking at these cases, figuring out in some level of detail the same way they do in the medical field, what went wrong that led someone to experience a heat or cold injury that in some awful cases took their life,” Raifman said. “And what can we do to prevent that next time and save the next person?”

Relatives and friends for the six people who died either declined to comment or couldn’t be reached.

Ferguson lived in the East Garfield Park neighborhood. His family could not be immediately reached.

Neighbors recalled Ferguson living with his family in a limestone two-flat home. Air conditioning units could be seen on the first and second floors. Neighbors said Ferguson could often be seen walking in the West Side neighborhood with his two dogs.

A relative who lived in the same building as Mike Rodriguez declined to comment Monday. Neighbors said Rodriguez had lived in the building’s attic that didn’t have great air circulation. A window air conditioning unit could be seen outside the home.

The exterior of a small home where the Cook County Medical Examiner said Mike Rodriguez was living when he died from from heat-related complications in Mckinley Park.

The address where the Cook County Medical Examiner said Mike Rodriguez was living when he died from from heat-related complications in Mckinley Park.

Anthony Vazquez/Sun-Times

One death happened in Evanston and the other five people who died were residents of Chicago’s South and West sides. Communities in Chicago’s South and West sides are most vulnerable to extreme heat, said Daniel Horton, an associate professor at Northwestern University who helped develop a heat vulnerability index for the city.

Some of that vulnerability is tied to socioeconomic factors, like not being able to afford an elevated electricity bill to cool a home or not having an adequate air conditioning unit, Horton said. Neighborhoods with fewer trees also provide less opportunities to find shade during extreme heat, which is one of the reasons why community groups advocate for more shading near bus stops.

But a bigger issue to tackle is social isolation, Horton said, referencing one of the larger issues that came out of the devastating 1995 heat wave. People were more likely to have died if they weren’t connected to neighbors that could check on them or give them a fan or other materials to help them stay cool.

“That social infrastructure piece of it is also really key to increasing a community’s resilience,” Horton said.

Community groups have also pushed for not only a 24-hour cooling center but for one that stays open during weekends or holidays, Raifman said. The city has standards for activating an emergency response due to weather but those standards can feel unattainable, he said.

The city sometimes extends hours to 8 p.m. for one of its community service centers at 10 S. Kedzie Ave., according to the mayor’s office.

Mayor Brandon Johnson’s office also said officials were closely monitoring high temperatures, adding that they consider police districts, libraries, community colleges and park district facilities to be part of citywide cooling efforts. In a statement, the mayor’s office said it was “deeply saddened by any weather-related loss of life in our city,” and offered condolences.

“There are leaders and individuals at the city who are certainly working hard, in the moment, to address these things,” Raifman said. “But I think what they lack and what we lack is any kind of advance planning and understanding of what gets deployed where.”

Contributing: Cam Rodriguez and Alden Loury

Source: Chicago Sun-Times

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