The dense smoke from Canadian wildfires has pushed air quality to dangerous levels in the past few days. Judson Jones and ...

Exposure to high outdoor temperatures during pregnancy and early infancy appears to slow the growth of a specific brain ...

The region has experienced several days of unusually high temperatures, but conditions are expected to ease over the weekend ...

All eyes are on the Pacific Ocean as an exceptionally strong El Niño takes shape, but meanwhile, something unusual is brewing ...

A low-pressure system in the Gulf is expected to form over the weekend. It has a low chance of development, according to the National Hurricane Center ...

Much of the U.S. is facing either extreme heat or excessive rainfall and potential flooding on Tuesday. Here's where the ...

As temperatures rise, CNN is tracking extreme heat conditions and the potential risk for Americans each day. 🔥 Get your heat ...

Heat alerts were issued for millions across parts of the western U.S. Sunday due to an unusually prolonged heat dome, which ...

The Old Farmer's Almanac forecasts a cooler, wetter fall for some and a warmer, drier season for others. Here's what it says ...

Several European countries have shattered dozens of heat records so far this summer, leading to over 2,000 deaths.

Extremely dangerous heat, coupled with humidity, could result in heat index readings of 100 to 115 degrees from the Midwest to the East Coast, forecasters said.