The intensifying and expansive heat wave affecting around 150 million people in the United States from Wisconsin to Washington, DC, bears the hallmarks of human-caused global warming.

The thermometer of a drugstore shows the temperature of 39 degrees Celsius (102 degrees Fahrenheit) during a heat wave, in Rome, Tuesday, July 1, 2025.© Andrew Medichini/AP ...

Southern California's heat wave will peak Thursday, bringing triple-digit temperatures to L.A. County. Hotter than normal weather will continue well into next week.

When a heat advisory is issued also depends on where you are in Florida. For most of the state, a heat advisory is issued if the heat index is expected to be between 108 to 112 degrees. Here is ...

Michigan may not be the corn capital of the U.S., but there's plenty of it around and with a major heat wave bearing down on the state — all that corn is sweating along with the rest of us.

The heat is then expected to shift and persist across the Ohio Valley, Northeast and Mid-Atlantic later in the weekend through next week. AccuWeather said the heat wave will continue to progress ...

A "heat dome," similar to a heat wave, is a high-pressure system trapping hot air and causing prolonged high temperatures. Heat domes differ from heat waves in their duration and the stagnant ...

When a heat advisory is issued also depends on where you are in Florida. For most of the state, a heat advisory is issued if the heat index is expected to be between 108 to 112 degrees. Here is ...