safety
Heat dome to scorch major U.S. cities this week, forecasters warn
By CBS Miami at CBS4 Miami
· June 30, 2026
· 4 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.A heat dome is expected to build over the
Key takeaway , expected to see record highs into the 100s, according to CBS News meteorologist Nikki Nolan.
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Category: safety ·
Published: June 30, 2026 ·
Source: CBS4 Miami ·
Reading time: 4 min
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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.A heat dome is expected to build over the
When was this published? This article was first published on June 30, 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 .
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