06/18/2025

A Potent Heat Dome Will Send Temperatures into the Triple Digits

Many places will see highs in the low to mid-90s

The first of two rounds of extreme heat is underway for parts of the eastern half of the United States, the opening act for a potent and widespread heat dome that will send temperatures to dangerous, record-breaking levels over the weekend and into next week.

More than 15 million people from the Washington, DC, area to parts of Florida are under a level 3-of-4 major heat risk through Thursday, according to the National Weather Service (NWS). Such heat "affects anyone without effective cooling and/or adequate hydration," the agency warns.

Many places will see highs in the low to mid-90s but it will feel hotter, with the heat index — how it actually feels outside, including humidity — in the triple digits. Humid air this week will make it feel especially sticky, hotter and limit overnight cooling.

Please select this link to read the complete article from CNN.