Record-smashing daytime temperatures near 100 degrees are expected for millions from the Plains to the East Coast this week, while nighttime temperatures may stay above 80 in some metropolitan areas.

Thunderstorms packing destructive winds and torrential rain will be relentless along the edges of a ridge of high pressure encircling the central and eastern states through late June.

Severe storms hit NYC Thursday, delaying flights and downing trees. A 15-year-old boy was struck by lightning in Central Park but survived with minor injuries.

Four private astronauts are waiting to launch into space as NASA and its international partners work to seal a leak that sprung up on the International Space Station earlier this month.

Hurricane Erick slammed into Mexico’s Oaxaca state as a dangerous Category 3 storm Thursday morning, unleashing powerful winds at the coast and heavy rains that have caused deadly flooding in the ...

Significant flooding in northern West Virginia has claimed the lives of at least six people, including a 3-year-old. Crews continued the search for those missing on Monday morning.

A rare severe thunderstorm warning was issued for Juneau, Alaska Monday, as a video of a possible tornado emerged.

Rounds of thunderstorms will form a "ring of fire" around a massive dome of building heat in the central and eastern United States into next week.

A pulse of severe thunderstorms is shifting into the Interstate 81 and 95 corridors of the Northeast into Thursday night. Some severe storms will also extend into the southern United States and ...

NASA has announced that an asteroid about 200 feet in diameter is now slightly more likely to crash into the moon.

At least 7 people were killed by flooding in West Virginia over the weekend, and the forecast is for more rain.