Another shot of arctic air is going to move into the area and the leading edge of the cold air arrives today.
Under cloudy skies we can expect temperatures to fall into the 20s Monday afternoon as we introduce the chance for light snow showers. The chance for snow ramps up this evening and overnight.
The potential exists for a potent band of lake effect snow to set up tonight. Areas from Cook county east into northwest Indiana could see several inches of snow through the overnight and into Tuesday. Snowfall rates of 2-3 inches per hour are possible and that would make travel hazardous.
Lows will dip to around 3 degrees tonight with wind chills of -15 to -20. Our Tuesday won’t warm up much. Highs are only forecast to reach the upper single digits with wind chills remaining at -10 to -20.
We’ll stay cold the rest of the week with on and off chances for flurries and light snow showers.