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WGN-TV Chief Meteorologist Tom Skilling says today marks the coldest February open in Chicago in 17 years.

Temperatures at O’Hare Airport dipped to 0 degrees at 7:08 a.m. Friday — only the second zero or lower temperature this winter. This cold outbreak follows least snowy January in 12 years, Skilling says.

And good news for snow enthusiasts: The biggest accumulation of the season is forecast for Friday night. But keep it in perspective, Skilling says: Snowfall has very limited this season, with the heaviest tally to date at 1.1 inches.

Snow is set to arrive in intervals Friday night into Sun morning. Raw model totals range from 2 to 5 inches.

Skilling will have the latest on our 5 p.m. and 9 p.m. newscasts. Watch on the go with any device at