Extreme heat is impacting states across the country. See maps of high temperature forecasts and heat index levels.

A heat wave is currently affecting about 160 million people, according to the National Weather Service. Here's which states ...

More than 200 million Americans are under extreme heat alerts” not a prediction for the future, that’s the reality enveloping ...

"Dangerous heat will intensify across much of the Northeast and Mid-Atlantic early this week," meteorologist Jacob Hinson ...

U.S. natural gas futures rose over 2% on Wednesday, snapping two days of declines, as hotter mid-July forecasts are expected ...

The NWS HeatRisk index, a map that provides a forecast of heat-related impacts over the next 24 hours, showed that the most severe heat-related impacts were expected in southern Texas, prompting ...

An "extreme heat belt" may form in the US by 2053, an analysis from First Street Foundation predicts. The report used satellite data to model heat risk at the property level for the next 30 years ...

A brutal heat wave across the eastern United States trapped millions of people in sweltering air this week with record-high temperatures. A cold front brought cooler weather to the Northeast on ...

We are in the middle of a pretty rough heat wave. During the last 3 days we have had high temps well into the 90s. High Temps ...

A massive heat dome will bring stifling temperatures and oppressive humidity for millions across much of the United States in the coming days. The high-pressure system is forecast to cause ...

See the heat index forecast for the next seven days by entering the name of your city. See how often your city has experienced dangerous heat index since 1979. NOAA said there's 99.9% chance 2025 ...

Here's maps, what to know. ... USA TODAY NETWORK. ... A heat advisory is triggered when the heat index is between 100 degrees and 104 degrees for two consecutive hours in the areas highlighted in ...