Nearly as cold or colder tonight, clouds will break, which will mean lows plummeting to or below zero, except closer to Lake Michigan.

There is a slight warm-up to end the week but high temperatures are unlikely to break 20. Light snow showers also stay in the forecast, accumulation of more than one inch each day is unlikely. A reinforcing punch of arctic air is set to impact the central and eastern U.S. for New Year’s Day, temperature will likely dive below zero to start 2018. A break from this frigid pattern still shows up in the models for mid-January.

Tonight: Partly cloudy, flurries, lows near or below zero. 

Only minor snowfall through Friday, mostly off Lake Michigan.

Thursday: Partly cloudy, chance of snow late, high of 12.

Friday: Light snow showers, high of 18.

Saturday: Light show showers, highs in the mid-teens.

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