A large winter storm will pass south of Chicago Monday and Monday night.
We may see flurries or light snow showers from the city southward, but there are winter storm warnings with heavy snow expected across central and southern Illinois.
Our streak of days with highs above freezing will end Tuesday, as the coldest air in a year arrives overnight with New Year's Day highs in the teens and wind chills near zero.
Much of the week looks chilly in the 20s with a return of some sunshine and little or no chance for snow.
MONDAY: Cloudy with a flurry or snow shower south of the city today and tonight. Highs near 35 by noon and falling to the 20s this afternoon. Lows overnight near 13.
NEW YEAR'S DAY: Partly to mostly sunny with lake effect snow showers in NW Indiana. Highs near 19 with wind chill near zero. Lows near 9.
WEDNESDAY: Sunny and cold with highs near 22 and lows near 13.
THURSDAY: Mostly cloudy with a flurry possible. Highs near 27 and lows near 17.
FRIDAY: Partly sunny with highs near 25 and lows near 14.
SATURDAY: Partly sunny with highs near 33 and lows near 29.
SUNDAY: Mostly cloudy with a snow shower possible. Highs near 32 and lows near 15.