Excessive Heat — Eastern Chester, Pennsylvania

2025-06-23 to 2025-06-25 · Eastern Chester, Pennsylvania

Event narrative

Three days of high heat and humidity brought extreme heat indices. The heat index peaked at 106 degrees on June 23rd at Brandywine Regional Airport.

Wider weather episode

A strong ridge of surface and upper level high pressure parked itself over much of the eastern United States, resulting in widespread extreme heat and humidity.

Source: NOAA Storm Events Database, event_id 1268059. Narrative written by the NWS forecast office that issued the report.