safety
Dangerous heat wave impacting large swathes of the U.S. this week, forecasters warn
By CBS Miami at CBS4 Miami
· June 28, 2026
· 3 min read
A long and dangerous heat wave will blast a large swath of the United States this week, the National Weather Service said, with temperatures rising ahead of the July Fourth holiday and feeling even hotter because of the high humidity that's arriving with it.Several days of high temperatures will set
Key takeaway Several days of high temperatures will settle in across the lower Great Lakes, the mid-Atlantic and the Mississippi and Ohio River valleys, the weather service said.
Why this matters in The Miami
For Miami residents, the heat wave sweeping the nation is a stark reminder of the city's own vulnerability to extreme temperatures and humidity. As the heat index soars, Miami's low-lying neighborhoods, such as Little Havana and Miami Beach, will be particularly susceptible to the dangers of heat-related illnesses. The city's large Latin American and Caribbean communities, who may have limited access to air-conditioning and other cooling measures, will be especially at risk. Miami-Dade County Public Schools and local community centers may need to take extra precautions to ensure students and residents have access to cool spaces and hydration. The Miami Police Department and Miami-Dade Police will likely be on high alert to respond to heat-related emergencies. As the heat wave persists, Miamians should be vigilant about staying cool, hydrated, and informed about the risks of extreme heat.
About this story
Original reporting by CBS4 Miami . The Miami surfaces reporting from trusted publishers and adds local editorial context so readers can quickly understand what a story means for their community. We attribute every source, link to the original report, and follow a documented editorial standards policy. To understand how stories are selected and reviewed, read our about page .
For the complete original report, visit CBS4 Miami . Have a tip or correction? Contact our newsroom .
Category: safety ·
Published: June 28, 2026 ·
Source: CBS4 Miami ·
Reading time: 3 min
Get more The Miami stories like this
Free weekly briefing covering safety and other local news. Curated by our editorial team. No spam.
By subscribing you agree to our privacy policy . Unsubscribe anytime.
Frequently asked about this story
What is this story about? A long and dangerous heat wave will blast a large swath of the United States this week, the National Weather Service said, with temperatures rising ahead of the July Fourth holiday and feeling even hotter because of the high humidity that's arriving with it.Several days of high temperatures will set
When was this published? This article was first published on June 28, 2026 by CBS4 Miami and curated for The Miami readers.
Who reported this story? This story was reported by CBS Miami at CBS4 Miami. To learn more about how The Miami selects and reviews stories, see our editorial standards .
Where can I find related coverage? See more safety coverage from The Miami, or browse our daily briefing and topic hubs .
← Back to all news
More safety →
Today’s briefing
Subscribe to newsletter