More than 160 million Americans are under the highest level of extreme heat alerts during a wave of above-average ...

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

The Fordow nuclear facility, buried beneath a mountain near Qom, Iran, has drawn global military attention—but it is far from ...

A powerful X-class solar flare erupted on June 19, disrupting radio signals and potentially setting the stage for geomagnetic ...

"Showers and thunderstorms located over the Florida peninsula, the southeastern U.S. coast, the northwestern Bahamas, and the adjacent Atlantic and Gulf waters are associated with a broad trough of ...

The map is updated every hour. Track the wildfires in Canada and the United States with this map RELATED: Air quality is bad in Wisconsin, here are ways to protect yourself and loved ones ...

Smoke from raging wildfires in Canada is worsening air quality in some U.S. states. But will Greater Cincinnati be affected? Here's what we know.

Orange-tinged skies spread much further than the poor surface air. Carried by the river of air in the sky called the jet stream, smoke ended up as far south as the coastal Southeast U.S. over the ...

Forecasters of space weather keep an eye on the sun to stay ahead of eruptions of solar material that have the ability to shut down power grids on Earth, disrupt aircraft routes, global ...

A round of severe thunderstorms with the capability of producing tornadoes is crossing the state of Michigan. Get a live weather radar loop here.

Several current and former agency meteorologists and staff told CNN they are concerned warnings won’t be issued in time as hurricane season nears.

The National Weather Service is in worse shape than previously known, according to interviews with current and former meteorologists, due to a combination of layoffs, early retirements and ...