The weak La Niña that’s been with us since winter has officially faded, the Climate Prediction Center said Thursday.

When the polar vortex begins to wobble and allows arctic air to spill south into northern Illinois in January, we usually end ...

We grade our winter outlook most years, even if the results aren’t pretty. But this year’s outlook was reasonably accurate.

Cloudy and cool conditions continue in Chicago today, but milder weekend temperatures are on the way before another cooldown hits next week.

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