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

The return of warm summer weather means residents and guests visiting the city can finally hit the water, especially those ...

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

Major cities across the United States are preparing for extreme temperatures caused by a heat dome that hit the U.S. Plains ...

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

The storm is forecast to rapidly intensify and become a Category 3 hurricane with 115-mph winds before making landfall along ...

The National Hurricane Center is monitoring three tropical waves in the Atlantic basin. Tropical wave 1: An eastern Atlantic ...

The National Hurricane Center is monitoring three tropical waves in the Atlantic basin, including one in the western ...

Solar flares can affect us on Earth, and radiation from this flare caused a shortwave radio blackout. A map released by the ...

Here's everything you need to know about the parade to honor the 250th anniversary of the US Army, including the schedule, ...

Tropical wave 2: A tropical wave is east of the Lesser Antilles, extending from 06N to 17N with axis near 57W, moving west ...