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

A brutal heat wave across the eastern United States trapped millions of people in sweltering air this week with record-high ...

Des Moines, Iowa, Bismarck, North Dakota, and Rapid City, South Dakota, are also at risk for severe storms today, Merrill ...

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

“In concert, the extreme weather map from 2011, plus the climate-health vulnerability map, together give a very rich picture of what we need to think about in the future,” Knowlton said.

In Caribou, Maine, the National Weather Service issued its first-ever excessive heat warning for a heat index nearing 110F on June 19. Las Vegas also grappled with extreme heat, reaching ...

Interactive map shows how extreme weather events cause significant damage to lower- and middle-class Americans. Tackling Climate Change and Environmental Injustice, Clean Energy, Climate Impacts ...

New Map To Show Where Extreme Weather Has Happened November 12, 2015 / 5:03 AM EST / CBS Baltimore ANNAPOLIS, Md. (AP) -- Environment Maryland will join federal and local officials in Maryland to ...

A map in the UN’s new climate report shows how greenhouse gases worsen heat waves, sea level rise, and more. ... Where extreme weather is getting even worse, in one map.