The U.S. is looking at an unwelcome birthday gift: a dangerous heat wave arriving ahead of the holiday weekend.
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Where, when and how bad the Fourth of July heat wave will be, in seven diagrams, charts and maps
This version of Us Extreme Heat Dome July Fourth 2026 Maps Charts Rcna352304 - Breaking News | NBC News Clone was adapted by NBC News Clone to help readers digest key facts more efficiently.
More than 160 million people — nearly half the U.S. population — are under heat alerts Thursday.
