Heat dome will cause dangerously high temperatures in many places across the country this weekend, especially the Midwest and ...

Maps show where extreme humidity and 90- or 100-degree temperatures will affect around 255 million people across the United ...

The area of extreme heat will stretch from the Rockies to the East Coast, with spikes between five and 15 degrees above ...

The National Weather Service called the warm and above-average temperatures coming in behind the system "the first ...