70 million Americans face excessive heat as third heat dome sweeps southern US in a month

A third major heat dome is forecast to blanket the South and Midwest with temperatures of 95-105°F, affecting roughly one-fifth of the U.S. population within weeks of consecutive extreme heat events.

First covered Jul 25, 2026 · 11:34 AM PT · 1 article

70 million Americans face excessive heat as third heat dome sweeps southern US in a month — Image via theguardian.com

Coverage

6h Guardian Environment Scorching US heatwave to hit 70 million people with third ‘heat dome’ in month — Temperatures of 95-105F (35-40C) are expected, spanning Gulf of Mexico coast to the Great Plains and the midwest About 70 million people in the US are set to…

Primary sources

nifc.gov National Fire News | National Interagency Fire Center

wpc.ncep.noaa.gov Latestkeymessage 1 (wpc.ncep.noaa.gov)

More coverage from around the web

severe-weather.eu US Heat Wave 2026: Record-Breaking Heat Dome Scorching 200+ Million Americans

thehill.com Double heat dome coming to US: Here’s when it’ll start, where it’ll be worst

upi.com Heat dome to build east into next week, bringing hottest weather of season to St. Louis, Memphis - UPI.com

weather.com Extreme heat dome shatters records across Central and Eastern US

aljazeera.com What is a heat dome? The US heatwave explained | Weather News | Al Jazeera

Appeared in: 2026-07-25 (#9) · 2026-07-26 (#8)

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