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132 Million Face Life-Threatening Heat in Central and Eastern U.S.

Relief is not expected until a frontal boundary brings cooler, drier air by midweek.

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Tourists drink water as they walk along the National Mall near the Washington Monument in Washington, DC, July 25, 2025, as a heat dome sits over the region leading to extremely high temperatures.
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Overview

  • More than 132 million people across 29 states remain under heat advisories or excessive-heat warnings through Wednesday.
  • Southeast coastal areas from Savannah to Virginia Beach are enduring heat indices up to 116°F while inland cities such as St. Louis, Memphis and Charlotte record multi-day highs near 100°F with feels-like temperatures above 105°F.
  • PJM Interconnection has expanded hot weather alerts across its full 13-state and D.C. service area to prepare for surging electricity demand.
  • Ground-level ozone in parts of New York and New Jersey and smoke from Canadian wildfires in New England are compounding respiratory hazards.
  • A frontal system forecast to move south midweek should usher in cooler temperatures and reduced humidity into early August.