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

Temperatures are staying relatively warm throughout Illinois this week, despite fall officially starting Sept. 21. But residents in the state know that when the cold kicks off in Illinois, it comes ...

CHICAGO (WLS) -- Polar Vortex? Not quite, but Chicago weather is on pace for a cool down next week. "The jet stream will be buckling unusually far south for mid-July, allowing a cross polar flow of ...

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

In an early sign of the winter weather that's coming, the dreaded polar vortex is making news yet again. The polar vortex is "ramping up from its summer slumber," said meteorologist Judah Cohen in an ...

CHICAGO (WLS) -- "Polar Vortex" is a dreaded term that we all have become accustomed too over the past few years. But what is it? The polar vortex is always present in the Arctic Circle. It is a broad ...

The polar vortex is beginning to stir, signaling a gradual shift toward cooler fall weather in the northern U.S. Tennessee is expected to see mild temperatures through December, with the average first ...