Heat wave forecast: Dangerous temps to continue into July 4 holiday [View all]

Source: ABC News

July 2, 2026, 9:38 AM


A dangerous heat wave is bringing prolonged extreme heat to more than two dozen states across the Midwest, the South and the East Coast. The heat wave began in the Midwest on Monday and has since spread east, where it's set to last into the Fourth of July weekend.

With holiday travel in full effect, Amtrak canceled over a dozen trains in the Northeast Thursday due to the heat.

On Thursday, the heat index -- what temperature it feels like with humidity -- is expected to hit a scorching 111 degrees in Philadelphia and Washington, D.C., 106 in Boston, 102 in Chicago, 108 in Detroit, and 110 in Nashville, Tennessee.


Extreme heat alerts.
ABC News

New York City's heat index is forecast to reach 110 degrees, which has only happened three times in the last 80 years.

Read more: https://abcnews.com/US/heat-wave-forecast-dangerous-temps-continue-july-4/story?id=134404736

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Just before noon, my temp here in Philly, hit 97F with an obscene dewpoint of 80F. I'm now at 98 with the same dewpoint.

There oughta be a law!