Maps show millions of Americans under heat alerts from extreme temperatures in Plains, Northeast

Roughly 100 million people across the United States are facing extreme temperatures this week as a heat dome scorching the western part of the country spreads to the Northeast. In Billings, Montana, temperatures reached a record high of 111 degrees on Sunday as the dangerous heat was felt across the Great Basin, the Rockies and sections … Read more

Temperatures forecast to reach up to 117 degrees in western heat wave

Sweltering heat continued to permeate the western United States on Thursday, as forecasters warned that some desert communities could see temperatures soar to 117 degrees. The extreme heat is expected to span a wide swathe of the country — both within and beyond the West. Parts of Arizona, Nevada, New Mexico, Texas, Arkansas and Florida … Read more

Chinese air conditioners are in hot demand in Europe as heat wave sends temperatures soaring

BEIJING — Trade tensions between China and Europe are heating up, even as Europeans turn to China for help cooling down. Limited time: Save 25% on NBC News subscription Get exclusive reporting, live Q&As and ad-free reading. Air conditioners had become a hot commodity in Europe even before a deadly heat wave in recent weeks … Read more

Ocean surface temperatures hit record high as world enters ‘uncharted territory,’ scientists warn

According to Copernicus Climate Change Service and the Copernicus Marine Service, global ocean temperatures outside the polar regions hit record levels on June 21, surpassing levels for the time of the year observed in both 2023 and 2024. The Copernicus Climate Change Service said temperatures reached 20.86 degrees Celsius, or 69.54 degrees Fahrenheit, that day, … Read more

It could be hottest July 4th ever for millions of Americans, with over 300 record temperatures forecast

This July Fourth could be the hottest on record for millions of Americans as a massive heat wave traps more than half of the United States under a heat dome through the holiday weekend. Dangerously high temperatures, coupled with humidity, could result in heat indices of 100 to 115 degrees from the Midwest to the … Read more