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 ...

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

Richmond is gearing up for yet another heat wave sweeping through Central Virginia this week. But has it always been this hot ...

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 ...

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

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

Tropical activity is set to ramp up in the eastern Pacific, while forecasters monitor possible Gulf Coast development.

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 ...

Another round of sweltering heat is in store for much of the U.S. this week. The National Weather Service predicts that more ...