Winter is approaching, and millions of Americans are wondering what Mother Nature has in store for the coming months. Will it ...

The Northeast and Mid-Atlantic States: For this region, a weak La Niña can be very unpredictable. Sometimes the jet stream’s ...

Temperatures are cooling in Illinois, which means the first snow of the season isn't too far away. Here's when to expect. the ...

CLEVELAND — High above the Arctic, swirling like a giant icy crown, the polar vortex is a permanent feature of our atmosphere ...

The Pacific Ocean along the equator is where a phenomenon called La Niña develops. La Niña is the “cool sister” to El Niño.

La Niña, which typically steers storms north of D.C. and tilts the odds toward less snowy winters, has returned. But its weak ...

Britain's flagship polar research vessel heads to Antarctica next week to help advance dozens of climate change-linked ...

The polar vortex is making a return to the forecast, but the counterintuitive weather feature is nothing to fear.

The polar vortex is stirring up, with winter weather advisories in Alaska and freeze warnings in New York signaling the first signs of the changing fall weather in the US. With New Jersey's apple ...

It still feels summery in Mississippi with daytime highs in the 80s and relatively high humidity. But nights are getting a hint of a chill, and winter will be here before you know it. The polar vortex ...